| Title | Author 1 | Pub Dates | Shelf Location |
|---|---|---|---|
| O’Dell Family | O’Dell Family | S/929.2/O’Dell// | |
| O'Kief, Coshe Mang, Slieve, Lougher, and Upper Blackwater in Ireland. Historical and Genealogical Items Relating To Cork and Kerry. An Index to 15 Vols. | Casey, Albert Eugene, M.D. | 941.5/Cork/V2/Cas/Index | |
| Oak Hill Cemetery, Highway 71 North, Maryville, Nodaway County, Missouri | Nodaway County Genealogical Society | 1988 | 977.8/Nodaway/V3/Nod |
| Oak Hill Cemetery, Taylorville, Illinois | Christian County Genealogical Society | n.d. | 977.3/Christian/V3/Chr |
| Oakland California City Directory, 1930 | Polk, R. L. & Co. | 1930 | F/979.4/Alameda/E4/Pol/14 fiche |
| Obion Origins (1983-1996*) | Obion Genealogical Society | P/USA-TN/Obion// | |
| Obituaries and Register of Deaths Copied from Greenville Advocate, 1858-1899 | Anthony, Nelda Neer | 1985 | 977.3/Bond/B3/Ant |
| Obituaries From Tennessee Newspapers | Garrett, Jill L. | 1980 (1995) | 976.8//B3/Gar |
| Obituaries, Pedigree Sheets, Death Lists, Military Data, McLean and Logan Counties | McLean County Genealogical Society | 1998 | 977.3/Mclean/H2/Mcl |
| Obituaries Published by The Christian Index 1822 - 1879 | Overby, Mary McKeown | 1975 | 975//V4/Ove |
| Obituaries Published by The Christian Index 1880 - 1899 | Overby, Mary McKeown | 1982 | 975//V4/Ove |
| Obituary Indexes, Phillips County (Kansas) Genealogical Society | Phillips County Genealogical Society | 978.1/Phillips/V4/Phi | |
| Obituary Prior to 1800 (as far as relates to England, Scotland, and Ireland). Vol. I. (V. 44) | Harleian Society | 1899 | 942//D5/Har/V.44 |
| Obituary Prior to 1800 (as far as relates to England, Scotland, and Ireland). Vol. II. (V. 45) | Harleian Society | 1900 | 942//D5/Har/V.45 |
| Obituary Prior to 1800 (as far as relates to England, Scotland, and Ireland). Vol. III. (V. 46) | Harleian Society | 1900 | 942//D5/Har/V.46 |
| Obituary Prior to 1800 (as far as relates to England, Scotland, and Ireland). Vol. IV. (V. 47) | Harleian Society | 1900 | 942//D5/Har/V.47 |
| Obituary Prior to 1800 (as far as relates to England, Scotland, and Ireland). Vol. V. (V. 48) | Harleian Society | 1901 | 942//D5/Har/V.48 |
| Obituary Prior to 1800 (as far as relates to England, Scotland, and Ireland). Vol. VI. (V. 49) | Harleian Society | 1901 | 942//D5/Har/V.49 |
| Obituary Record of Graduates Deceased During the Year Ending July 1, 1946, | Yale University | 1948 | 974.6/New Haven/V4/Yal |
| Occupational Sources for Genealogists. A Bibliography | Raymond, Stuart A. | 1992 | 942//U2/Ray |
| Occupations, A Preliminary List | Culling, Joyce | 1994 (1999) | 942//U2/Cul |
| Occurrences in Hispanic California | Ord, Augustias de la Guerra | 1956 | 979.4//H2/Ord |
| Odyssey of the Santa Barbara Kingdoms and 138 Miles North | Hall Productions, Thorne | 1960 (1963) | 979.4/Santa Barbara/H2/Hal |
| Of California’s First Citrus Empire, A Rainbow Arches from Maine to Ventura County | Blanchard, Dean Hobbs | 1983 | 979.4/Ventura/H2/Bla |
| Of Finnish Ways | Rajanen, Aini | 1984 | 947.1//H2/Raj |
| Of Norwegian Ways | Vanberg, Bent | 1970 | 948//E6/Van |
| Of Plymouth Plantation, 1620 -1647 | Bradford, William | 1982 | 974.4/Plymouth/H2/Bra |
| Of Swedish Ways | Lorenzen, Lilly | 1964 | 948.5//H2/Lor |
| Offaly, History & Society, Interdisciplinary Essays on the History of an Irish County | Nolan, William | 1998 | 941.5/Offaly/H2/Nol |
| Official Army and Air Force Register, 1 January 1948, 2 Volumes (V.1,2) | United States Government Printing Office | 1949 | 973//M2/USA/V.1,2 |
| Official Baronage of England 1066-1885, Vol. 1-3 | Doyle, James E. | 1885 | 929.7//D5/Doy/V.1-3 |
| The Official Catholic Directory Anno Domini 1999, Part II | Kennedy, P.J. & Sons | 1999 | 929.3//K2/Ken/1999 |
| The Official Catholic Directory, Part I | Kenedy, P.J. & Sons | 1998 | 929.3//K2/Ken/1998 |
| Official Guide to the City of Montgomery, Alabama | Tintagil Club | 1948 | 976.1/Montgomery/E6/Tin |
| Official Manual of the State of Missouri, for the years 1917-1918 | Sullivan, John L. | 1918 | 977.8//N2/Sul/1917-1918 |
| Official Postal Guide. Canada, January 1895 | Canada | 1895 | 971//E8/Can/1895 |
| Official Records of the Union and Confederate Navies in the War of the Rebellion. | Marsh, Captain C.C. | 1951 | 973.7//M2/Mar/V.1,2 |
| Official Register of Land Lottery of Georgia, 1827 | Houston, Martha Lou. | 1928 | 975.8//R2/Hou |
| Official Register of the Officers and Men of New Jersey in the Revolutionary War | Stryker, William S. | 1872 | 974.9//M2/Str |
| Official Roster III Soldiers of the American Revolution Who Lived in the State of Ohio | Daughters of the American Revolution (DAR) | 1959 | 977.1//M2/DAR |
| The Official Roster of Ohio Soldiers in the War with Spain 1898-1899 | Hough, Benson W. | 1916 | 977.1//M2/Hou |
| Official Roster of the Soldiers of the State of Ohio in the War with Mexico, 1846-1848 | Ohio Genealogical Society | 1991 | 973.6//M2/Ohi |
| The Official State Atlas of Kansas | Everts & Co., L. H. | 1887 (1982) | 978.1//E7/Eve/1887 |
| The Official State Atlas of Nebraska, 1885 | Everts & Kirk | 1885 (1976) | O/978.2//E7/Eve/1885 |
| The Ogle Genealogist (1988-98*) | Ogle (Ogles) Family Association | P/Family/Ogle/D25/ | |
| Oh, That Reminds Me . . . | Patten, Phyllis Bertorelli | 1969 | 979.4/Santa Cruz/H2/Pat |
| Ohio | Santa Barbara County Genealogical Society | L/977.1/// | |
| Ohio 1810 Tax Duplicate, Arranged in State Wide Alphabetical List of Names of Taxpayers | Petty, Gerald M. | 1976 | 977.1//R4/Pet |
| Ohio 1870 Census Index (Family Quest Archives) 1998 | Heritage Quest | 1998 | C/977.1//X2/Her/1870 Index |
| Ohio Cemeteries | Ohio Genealogical Society | 1978 | 977.1//V3/Ohi |
| Ohio Cemeteries Addendum | Ohio Genealogical Society | 1990 | 977.1//V3/Ohi/Addendum |
| Ohio Civil War Genealogy Journal (1997-1998) | Ohio Genealogical Society | P/USA-OH/// | |
| Ohio County, Kentucky 1810-1840 Censuses | Lawson, Rowena | 1984 | 976.9/Ohio/X2/Law |
| Ohio County, Kentucky, in the Olden Days | Taylor, Harrison D. | 1926 | 976.9/Ohio/H2/Tay |
| Ohio County (WV) Index, v. 1, Index to the County Court Order Books Part 1 ... 1771-1881 | Craft, Kenneth Fischer | 1997 | 975.4/Ohio/P2/Cra/V.1 index |
| Ohio County (WV) Index, v. 2, Index to the County Court Order Books Part 2 ... 1771-1881 | Craft, Kenneth Fischer | 1998 | 975.4/Ohio/P2/Cra/V.2 index |
| Ohio County (WV) Index, v. 3, Index to the County Court Order Books Part 3 ... 1771-1881 | Craft, Kenneth Fischer | 1999 | 975.4/Ohio/P2/Cra/V.3 index |
| Ohio County (WV) Index, v. 4, Index to the County Court Order Books Part 4 ... 1771-1881 | Craft, Kenneth Fischer | 1999 | 975.4/Ohio/P2/Cra/V.4 index |
| Ohio County, (WV) Index, v. 8, Card Index to All Ohio County Courts’ Case Files & Loose Papers, Part 1, 1776-1825 | Craft, Kenneth Fischer | 2001 | 975.4/Ohio/P2/Cra/v. 8 |
| Ohio County (WV) Index v. 9, Card index to All Ohio County Courts’ Case Files & Loose Papers, part 2, 1826-1836 | Craft, Kenneth Fischer | 2002 | 975.4/Ohio/P2/Cra/v. 9 |
| Ohio County (WV) Index Volume 7C, Cumulative Personal Time Line Index to Volumes 1-7, Pages 1-1876, Index to County Court Order Books, 1777-1881 | Craft, Kenneth Fischer, Jr. | 2001 | 975.4/Ohio/P2/Cra/index |
| Ohio Divorces: The Early Years | Bell, Carol Willsey | 1994 | 977.1//P2/Bel |
| Ohio Genealogical Guide | Flavell, Carol Willsey | 1978 | 977.1//D27/Fla |
| The Ohio Genealogical Society Newsletter (1988-1994,1998-2002*) | Ohio Genealogical Society | P/USA-OH/// | |
| Ohio Land Grants | Ferguson, Thomas E. | 977.1//H2/Fer | |
| Ohio Lands, a Short History | Ferguson, Thomas E. | n.d. | 977.1//H2/Fer |
| Ohio Lands: Steubenville Land Office 1800-1820 | Bell, Carol Willsey. C. G. | 1983 (1987) | 977.1//R2/Bel |
| Ohio Marriages Extracted from the Old Northwest Genealogical Quarterly | Smith, Marjorie | 1980 | 977.1//V2/Smi |
| Ohio Marriages Recorded in County Courts Through 1820: An Index | Nathan, Jean | 1996 | 977.1//V2/Nat/index |
| An Ohio Portrait | Knepper, George W. | 1971 | 977.1//H2/Kne |
| Ohio Society D.A.R., Genealogical and Historical Records, Vol. 1, Master Index | Bell, Carol Willsey | 1985 | 977.1//A3/Bel/Index |
| Ohio Source Records from the Ohio Genealogical Quarterly | Ohio Genealogical Quarterly | 1986 | 977.1//B3/Ohi |
| Ohio. The Cross Road of our Nation. Records and Pioneer Families (1985,88,89,94,96,Index*) | Lee, Susan Dunlap | P/USA-OH//D25/ | |
| Ohio Valley German Biographical Index | Tolzmann, Don Heinrich | 1992 | 977//D22/Tol |
| The Ohio Valley Saffords | Smith, Reginald Heber | 1932 | 929.2/Safford//Smi |
| Ohio Vital Records #1, 1790’s - 1870’s | Broderbund Software Inc. | 1997 | C/977.1//V2/Bro |
| Ohio Vital Records #2, 1750s - 1880s | Broderbund Software Inc. | 1997 | C/977.1//V2/Bro/#2 |
| Ohio Wills and Estates to 1850: An Index | Bell, Carol Willsey, C. G. | 1981 | 977.1//P2/Bel/Index |
| Ohoyo One Thousand: A Resource Guide of American Indian/Alaska Native Women, 1982 | Anderson, Owanah | 1982 | 973//F3/And |
| The Oil and Gas Journal, Golden Anniversary Number...May 1951 | Petroleum Publishing Company | 1951 | 976//U2/Pet |
| Oil in Nebraska | Carlson, Marvin | 1989 | 978.2//U2/Car |
| The Ojai Valley, An Illustrated History (California) | Fry, Patricia L. | 1983 | 979.4/Ventura/H2/Fry |
| Ojai Valley Directory, 1980-81 (California) | Ojai Valley News | 1981 | 979.4/Ventura/E4/Oja/1980-81 |
| The Ojai Valley, Gateway to Health and Happiness | Woolman, Arthur Erwin | 1956 | 979.4/Ventura/H2/Woo |
| Ojai Valley Telephone Directory, 1987-88 | Telephone Company | 1988 | 979.4/Ventura/E81/Tel/1987-88 |
| Ojai Valley Telephone Directory, 1989-90 | Telephone Company | 1990 | 979.4/Ventura/E81/Tel/1989-90 |
| Ojai Valley Telephone Directory, 1991-92 | Telephone Company | 1990 | 979.4/Ventura/E81/Tel/1991-92 |
| Okihe Yearbook, 1913 | Yankton College | 1913 | 978.3/Yankton/B5/Yan/1913 |
| Oklahoma | Santa Barbara County Genealogical Society | L/976.6/// | |
| Oklahoma Marriage Records, Indian Territories, Vol. 5, 1896-1897 | Tiffee, Ellen | 1983 | 976.6//V2/Tif/V.5 |
| Old Albemarle and Its Absentee Landlords (The Lost Tribes of North Carolina, Part IV, 1947) | Ray, Worth S. | 1947 (1976) | 975.6/Currituck/D2/Ray |
| Old Albemarle County, North Carolina, Miscellaneous Records 1678 to ca 1737 | Haun, Weynette Parks | 1982 | 975.6/Albemarle/P2/Hau |
| The Old and New Monongahela | Van Voorhis, John S. | 1974 | 974.8/Washington/H2/Van |
| The Old and the New: History of the Post Offices of Wallowa County (Oregon) | Barklow, Irene | 1982 | 979.5/Wallowa/H2/Bar |
| Old Belfast Families and the New Burying Ground | Merrick, A.C.W. | 1991 | 941.51/Antrim/V3/Mer |
| Old Burnside | Arnow, Harriette Simpson | 1977 | 976.9/Pulaski/H2/Arn |
| Old Burying Grounds, Oxford Township, Michigan | Pearce, Marie | 1989 | 977.4/Oakland/V3/Pea |
| Old Calvary Cemetery, New Yorkers Carved in Stone | Ardolina, Rosemary Muscarella | 1996 | 974.7/New York/V3/Ard |
| Old Cemeteries of San Joaquin County, California,Vol. II | San Joaquin Genealogical Society | 1969 | 979.4/San Joaquin/V3/San/V.2 |
| Old Cemeteries of San Joaquin County California,Vol. III | San Joaquin Genealogical Society | 1964 | 979.4/San Joaquin/V3/San/V.3 |
| Old Cemeteries, St. Louis County, Missouri, v. 5 | St. Louis Genealogical Society | 2002 | 977.8/St. Louis/V3/Stl/V.5 |
| Old Cemetery Burials of Milwaukee County, Wisconsin, Volume 1 | Herzfeld, Elizabeth Doherty | 1995 | 977.5/Milwaukee/V3/Her/V. 1 |
| Old Cemetery Burials of Milwaukee County, Wisconsin, Volume 2 | Herzfeld, Elizabeth Doherty | 1997 | 977.5/Milwaukee/V3/Her/V. 2 |
| Old Chester | Crickmore, H. Hovell | 1895 | 942/Cheshire/H2/Cri |
| Old Churches, Ministers and Families of Virginia | Meade, Bishop William | 1900 | 975.5//K2/Mea/V.2 |
| The Old Churches of London | Cobb, Gerald | 1942 (1948) | 942/London/K2/Cob |
| The Old Churches of the Province of Quebec, 1647-1800 | Historic Monuments Commission of the Province of Quebec | 1925 (1998) | 971.4//H2/His |
| Old City Cemetery, Nashville, Tennessee, Tombstone Inscriptions | Garrett, Jill K. | 1971 | 976.8/Davidson/V3/Gar |
| Old Eliot, 1897 - 1899, Book One | Willis, John Lemuel Murray | 1897-1909 (1985) | 974.1/York/D25/Wil/Book 1 |
| Old Eliot, Book Three | Willis, John Lemuel Murray | 1897-09 (1985) | 974.1/York/D25/Wil/Book 3 |
| Old Eliot, Book Two (Maine) | Willis, John Lemuel Murray | 1901-1903 (1985) | 974.1/York/D25/Wil/Book 2 |
| Old Families of Louisiana | Arthur, Stanley Clisby | 2006 | 976.3//D2/Art |
| The Old Families of Salisbury and Amesbury, Massachusetts | Hoyt, David W. | 1982 | 974.4/Essex/D2/Hoy |
| Old Floyd County Families (Kentucky) (1995-1996) | Carroll, Cornelius | P/USA-KY/Floyd// | |
| Old Fort Genealogical Society Quarterly (1978-1992*) | Old Fort County Genealogical Society | P/USA-IA/Lee// | |
| Old Forts of the Far West | Hart, Herbert M. | 1965 | 979//M2/Har |
| Old Forts of the Northwest | Hart, Herbert M. | 1963 | 979//M2/Har |
| The Old Free State: A Contribution to the History of Lunenburg County and Southside Virginia | Bell, Landon C. | 1974 | 975.5/Lunenburg/H2/Bel |
| The Old Germanic Principles of Name-Giving | Wolf, Henry Bosley | 1939 | 929.4//D4/Wol |
| Old Gravestones of Columbia County, New York | Kelly, Arthur C. M. | 1996 | 974.7/Columbia/V3/Kel |
| Old Gravestones of Ulster County, New York, Volume I | Poucher, J. Wilson | 1931 | 974.7/Ulster/V3/Pou/V.1 |
| Old Graveyards of Clark County, Kentucky | Owen, Kathryn | 1975 | 976.9/Clark/V3/Owe |
| Old Hallowell on the Kennebec | Nason, Emma Huntington | 1909 | 974.1/Kennebec/H2/Nas |
| Old Homes and Buildings of Fredericksburg (Texas) | Kowert, Elise | 1977 | 976.4/Gillespie/J7/Kow |
| Old Indian Trails in Tompkins County | Norris, W. Glenn | 1969 | 974.7/Tompkins/E6/Nor |
| Old Kentucky Entries and Deeds. A Complete Index to All of the Earliest Land Entries, Military Warrants, Deeds and Wills of the Commonwealth of Kentucky. (Fayette, Lincoln and Jefferson Counties) | Jillson, Willard Rouse | 1926 (1987) | 976.9//R2/Jil |
| Old King William Homes and Families | Clarke, Peyton Neale | 1897 | 975.5/King William/D3/Cla |
| The Old Maps of Rockingham County, New Hampshire in 1892 | Saco Valley Printing | 1981 | 974.2/Rockingham/E7/Sac/1892 |
| The Old Merchants of New York City | Barreet, Walter | 1868 | 974.7/New York/D3/Bar |
| Old Monterey County, a Pictorial History | Johnston, Robert B. | 1970 | 979.4/Monterey/H2/Joh |
| Old Nyack (New York) | Budke, George | 1928 (1983) | 974.7/Rockland/H2/Bud |
| Old Order Mennonite Families, 2000: Indiana and Michigan | Anonymous | 1990 | 977.2//D3/Ano |
| The Old Parish Churches of Cumbria | Salter, Mike | 1998 | 942/Cumbria/K2/Sal |
| Old Philadelphia in Early Photographs, 1839-1914 | Looney, Robert F. | 1976 | 974.8/Philadelphia/H2/Loo |
| The Old Pike. A History of the National Road with Incidents and Anecdotes , Including a Series of Detailed Maps | Searight, Thomas B. | 1894 | 388//H2/Sea |
| The Old Post Road, The Story of the Boston Post Road | Holbrook, Stewart H. | 1962 | 974.4//H2/Hol |
| The Old Province of Quebec. | Burt, Alfred Leroy | 1933 | 971.4//H2/Bur |
| Old Pugwash Families | Smith, James F. | 1985 | 971.6/Cumberland/D2/Smi |
| The Old Records of the Town of Fitchburg, Massachusetts, Volume 1 | Davis, Walter A., City Clerk | 1898 | 974.4/Worcester/N2/Dav/V.1 |
| The Old Records of the Town of Fitchburg, Massachusetts, Volume 2 | Davis, Walter A., City Clerk | 1899 | 974.4/Worcester/N2/Dav/V.2 |
| The Old Records of the Town of Fitchburg, Massachusetts, Volume 3 | Davis, Walter A., City Clerk | 1900 | 974.4/Worcester/N2/Dav/V.3 |
| The Old Records of the Town of Fitchburg, Massachusetts, Volume 4 | Davis, Walter A., City Clerk | 1901 | 974.4/Worcester/N2/Dav/V.4 |
| The Old Records of the Town of Fitchburg, Massachusetts, Volume 5 | Davis, Walter A., City Clerk | 1902 | 974.4/Worcester/N2/Dav/V.5 |
| The Old Records of the Town of Fitchburg, Massachusetts, Volume 6 | Davis, Walter A., City Clerk | 1903 | 974.4/Worcester/N2/Dav/V.6 |
| The Old Records of the Town of Fitchburg, Massachusetts, Volume 7 | Davis, Walter A., City Clerk | 1907 | 974.4/Worcester/N2/Dav/V.7 |
| The Old Records of the Town of Fitchburg, Massachusetts, Volume 8 | Davis, Walter A., City Clerk | 1913 | 974.4/Worcester/N2/Dav/V.8 |
| The Old Rockingham Meeting House, Erected 1787 and The First Church in Rockingham, Vermont, 1773-1840 | Hayes, Lyman S. | 1915 | 974.3/Windham/K2/Hay |
| Old Scituate (Massachusetts), 2d ed. | Daughters of the American Revolution | 1970 | 974.4/Plymouth/H2/Dar |
| Old Settlers’ History of York County and Individual Biographies | Lett, John | 1913 | 978.2/York/H2/Let |
| Old Shipping Days in Boston | State Street Trust Company | 1918 | 974.4/Suffolk/H2/Sta |
| The Old Spanish and Mexican Ranchos of Los Angeles County, 1800 | M/979.4/Los Angeles/E7/ | ||
| Old Spanish Santa Barbara | Tompkins, Walker A. | 1966 | 979.4/Santa Barbara/H2/Tom |
| Old Sussex County Families of the Minisink Region | Stickney, Charles Edgar | 974.9/Sussex/D2/Sti | |
| Old Time New England, 3 vols. (Bound Magazines) The Bulletin of the Society for the Presentation of New England Antiquities | Society for the Presentation of New England Antiquities | 1950 | 974//H2/Old/1950-1960 |
| Old Times in Norway | Leirfall, Jon | 1986 | 948//H2/Lei |
| Old Times of North Yarmouth, Maine, 1877 - 1885 | Corliss, Augustus W. | 1877 (1977) | 974.1/Cumberland/D25/Cor |
| The Old Town of Berwick | Jewett, Sarah Orne | 1894 | 974.1/York/H2/Jew |
| The Old Town of Warsaw | Zachwatowicz, Jan | 1956 | 943.8/Warszawa/H2/Zac |
| Old United Empire Loyalists List. The Centennial of the Settlement of Upper Canada United Empire Loyalists, 1784-1884, Celebration at Adolphustown, Toronto, and Niagra, 1885 | Canada Centennial Commission | 1885 (1976) | 971//H2/Can |
| Old Ways Busy Days, A Collection of Profiles and Stories from Seniors in the Labrador Straits | Pike, Agnes | n.d. | 971.8//D4/Pik |
| Old Westmoreland (1981-1984*) | History and Genealogy of Westmoreland Co. | P/USA-PA/Westmoreland// | |
| Old Westmoreland. A History of Western Pennsylvania During the Revolution | Hassler, Edgar | 1900 | 974.8/Westmoreland/H2/Has |
| Old Wills of New Rochelle, Westchester County, New York, 1784-1830. Index | New Rochelle Chapter, DAR | 1951 | F/974.7/Westchester/P2/New/Index |
| Olde Mecklenburg (North Carolina) (1996-2000*) | Mecklenburg Genealogical Society | P/USA-NC/Mecklenburg// | |
| Olivas Adobe Self-Guiding Brochure (Ventura) | Olivas Adobe Historical Park | n.d. | L/979.4/Ventura/J7/Oli |
| Olive and Gold, Santa Barbara High School Yearbook, 1906 | Santa Barbara High School | 1906 | 979.4/Santa Barbara/B5/San/1906 |
| Olive and Gold, Santa Barbara High School Yearbook, 1910 | Santa Barbara High School | 1910 | 979.4/Santa Barbara/B5/San/1910 |
| Olive and Gold, Santa Barbara High School Yearbook, 1910, Suppl. | Santa Barbara High School | 1910 | 979.4/Santa Barbara/B5/San/1910, Suppl. |
| Olive and Gold, Santa Barbara High School Yearbook, 1911 | Santa Barbara High School | 1911 | 979.4/Santa Barbara/B5/San/1911 |
| Olive and Gold, Santa Barbara High School Yearbook, 1912 | Santa Barbara High School | 1912 | 979.4/Santa Barbara/B5/San/1912 |
| Olive and Gold, Santa Barbara High School Yearbook, 1913 | Santa Barbara High School | 1913 | 979.4/Santa Barbara/B5/San/1913 |
| Olive and Gold, Santa Barbara High School Yearbook, 1914 | Santa Barbara High School | 1914 | 979.4/Santa Barbara/B5/San/1914 |
| Olive and Gold, Santa Barbara High School Yearbook, 1914, Suppl. | Santa Barbara High School | 1914 | 979.4/Santa Barbara/B5/San/1914, Suppl. |
| Olive and Gold, Santa Barbara High School Yearbook, 1915 | Santa Barbara High School | 1915 | 979.4/Santa Barbara/B5/San/1915 |
| Olive and Gold, Santa Barbara High School Yearbook, 1916 | Santa Barbara High School | 1916 | 979.4/Santa Barbara/B5/San/1916 |
| Olive and Gold Yearbook, 1916 | Santa Barbara High School | 1916 | 979.4/Santa Barbara/B5/San/1916 |
| Olive and Gold, Santa Barbara High School Yearbook, 1917 | Santa Barbara High School | 1917 | 979.4/Santa Barbara/B5/San/1917 |
| Olive and Gold, Santa Barbara High School Yearbook, 1918 | Santa Barbara High School | 1918 | 979.4/Santa Barbara/B5/San/1918 |
| Olive and Gold, Santa Barbara High School Yearbook, 1920 | Santa Barbara High School | 1920 | 979.4/Santa Barbara/B5/San/1920 |
| Olive and Gold, Santa Barbara High School Yearbook, 1921 | Santa Barbara High School | 1921 | 979.4/Santa Barbara/B5/San/1921 |
| Olive and Gold, Santa Barbara High School Yearbook, 1922 | Santa Barbara High School | 1922 | 979.4/Santa Barbara/B5/San/1922 |
| Olive and Gold, Santa Barbara High School Yearbook, 1923 | Santa Barbara High School | 1923 | 979.4/Santa Barbara/B5/San/1923 |
| Olive and Gold, Santa Barbara High School Yearbook, 1924 | Santa Barbara High School | 1924 | 979.4/Santa Barbara/B5/San/1924 |
| Olive and Gold, Santa Barbara High School Yearbook, 1925 | Santa Barbara High School | 1925 | 979.4/Santa Barbara/B5/San/1925 |
| Olive and Gold, Santa Barbara High School Yearbook, 1926 | Santa Barbara High School | 1926 | 979.4/Santa Barbara/B5/San/1926 |
| Olive and Gold, Santa Barbara High School Yearbook, 1927 | Santa Barbara High School | 1927 | 979.4/Santa Barbara/B5/San/1927 |
| Olive and Gold, Santa Barbara High School Yearbook, 1928 | Santa Barbara High School | 1928 | 979.4/Santa Barbara/B5/San/1928 |
| Olive and Gold, Santa Barbara High School Yearbook, 1929 | Santa Barbara High School | 1929 | 979.4/Santa Barbara/B5/San/1929 |
| Olive and Gold, Santa Barbara High School Yearbook, 1930 | Santa Barbara High School | 1930 | 979.4/Santa Barbara/B5/San/1930 |
| Olive and Gold, Santa Barbara High School Yearbook, 1931 | Santa Barbara High School | 1931 | 979.4/Santa Barbara/B5/San/1931 |
| Olive and Gold, Santa Barbara High School Yearbook, 1935 | Santa Barbara High School | 1935 | 979.4/Santa Barbara/B5/San/1935 |
| Olive and Gold, Santa Barbara High School Yearbook, 1936 | Santa Barbara High School | 1936 | 979.4/Santa Barbara/B5/San/1936 |
| Olive and Gold, Santa Barbara High School Yearbook, 1937 | Santa Barbara High School | 1937 | 979.4/Santa Barbara/B5/San/1937 |
| Olive and Gold Yearbook, 1938 | Santa Barbara High School | 1938 | 979.4/Santa Barbara/B5/San/1938 |
| Olive and Gold, Santa Barbara High School Yearbook, 1939 | Santa Barbara High School | 1939 | 979.4/Santa Barbara/B5/San/1939 |
| Olive and Gold, Santa Barbara High School Yearbook, 1940 | Santa Barbara High School | 1940 | 979.4/Santa Barbara/B5/San/1940 |
| Olive and Gold, Santa Barbara High School Yearbook, 1941 | Santa Barbara High School | 1941 | 979.4/Santa Barbara/B5/San/1941 |
| Olive and Gold Yearbook, 1942 | Santa Barbara High School | 1942 | 979.4/Santa Barbara/B5/San/1942 |
| Olive and Gold, Santa Barbara High School Yearbook, 1943 | Santa Barbara High School | 1943 | 979.4/Santa Barbara/B5/San/1943 |
| Olive and Gold, Santa Barbara High School Yearbook, 1945 | Santa Barbara High School | 1945 | 979.4/Santa Barbara/B5/San/1945 |
| Olive and Gold, Santa Barbara High School Yearbook, 1946 | Santa Barbara High School | 1946 | 979.4/Santa Barbara/B5/San/1946 |
| Olive and Gold, Santa Barbara High School Yearbook, 1947 | Santa Barbara High School | 1947 | 979.4/Santa Barbara/B5/San/1947 |
| Olive and Gold, Santa Barbara High School Yearbook, 1948 | Santa Barbara High School | 1948 | 979.4/Santa Barbara/B5/San/1948 |
| Olive and Gold, Santa Barbara High School Yearbook, 1950 | Santa Barbara High School | 1950 | 979.4/Santa Barbara/B5/San/1950 |
| Olive and Gold, Santa Barbara High School Yearbook, 1951 | Santa Barbara High School | 1951 | 979.4/Santa Barbara/B5/San/1951 |
| Olive and Gold, Santa Barbara High School Yearbook, 1952 | Santa Barbara High School | 1952 | 979.4/Santa Barbara/B5/San/1952 |
| Olive and Gold, Santa Barbara High School Yearbook, 1953 | Santa Barbara High School | 1953 | 979.4/Santa Barbara/B5/San/1953 |
| Olive and Gold, Santa Barbara High School Yearbook, 1955 | Santa Barbara High School | 1955 | 979.4/Santa Barbara/B5/San/1955 |
| Olive and Gold, Santa Barbara High School Yearbook, 1956 | Santa Barbara High School | 1956 | 979.4/Santa Barbara/B5/San/1956 |
| Olive and Gold, Santa Barbara High School Yearbook, 1957 | Santa Barbara High School | 1957 | 979.4/Santa Barbara/B5/San/1957 |
| Olive and Gold, Santa Barbara High School Yearbook, 1958 | Santa Barbara High School | 1958 | 979.4/Santa Barbara/B5/San/1958 |
| Olive and Gold, Santa Barbara High School Yearbook, 1959 | Santa Barbara High School | 1959 | 979.4/Santa Barbara/B5/San/1959 |
| Olive and Gold, Santa Barbara High School Yearbook, 1960 | Santa Barbara High School | 1960 | 979.4/Santa Barbara/B5/San/1960 |
| Olive and Gold, Santa Barbara High School Yearbook, 1961 | Santa Barbara High School | 1961 | 979.4/Santa Barbara/B5/San/1961 |
| Olive and Gold, Santa Barbara High School Yearbook, 1962 | Santa Barbara High School | 1962 | 979.4/Santa Barbara/B5/San/1962 |
| Olive and Gold Yearbook, 1963 | Santa Barbara High School | 1963 | 979.4/Santa Barbara/B5/San/1963 |
| Olive and Gold Yearbook, 1964 | Santa Barbara High School | 1964 | 979.4/Santa Barbara/B5/San/1964 |
| Olive and Gold, Santa Barbara High School Yearbook, 1965 | Santa Barbara High School | 1965 | 979.4/Santa Barbara/B5/San/1965 |
| Olive and Gold, Santa Barbara High School Yearbook, 1966 | Santa Barbara High School | 1966 | 979.4/Santa Barbara/B5/San/1966 |
| Olive and Gold, Santa Barbara High School Yearbook, 1968 | Santa Barbara High School | 1968 | 979.4/Santa Barbara/B5/San/1968 |
| Olive and Gold, Santa Barbara High School Yearbook, 1969 | Santa Barbara High School | 1969 | 979.4/Santa Barbara/B5/San/1969 |
| Olive and Gold, Yearbook, 1970 | Santa Barbara High School | 1970 | 979.4/Santa Barbara/B5/San/1970 |
| Olive and Gold, Santa Barbara High School Yearbook, 1971 | Santa Barbara High School | 1971 | 979.4/Santa Barbara/B5/San/1971 |
| Olive and Gold Yearbook, 1972 | Santa Barbara High School | 1972 | 979.4/Santa Barbara/B5/San/1972 |
| Olive and Gold Yearbook, 1973 | Santa Barbara High School | 1973 | 979.4/Santa Barbara/B5/San/1973 |
| Olive and Gold Yearbook, 1974 | Santa Barbara High School | 1974 | 979.4/Santa Barbara/B5/San/1974 |
| Olive and Gold, Santa Barbara High School Yearbook, 1975 | Santa Barbara High School | 1975 | 979.4/Santa Barbara/B5/San/1975 |
| Olive and Gold, Santa Barbara High School Yearbook, 1976 | Santa Barbara High School | 1976 | 979.4/Santa Barbara/B5/San/1976 |
| Olive and Gold, Santa Barbara High School Yearbook, 1977 | Santa Barbara High School | 1977 | 979.4/Santa Barbara/B5/San/1977 |
| Olive and Gold Yearbook, 1978 | Santa Barbara High School | 1978 | 979.4/Santa Barbara/B5/San/1978 |
| Olive and Gold, Santa Barbara High School Yearbook, 1982 | Santa Barbara High School | 1982 | 979.4/Santa Barbara/B5/San/1982 |
| Olive and Gold, Santa Barbara High School Yearbook, 1983 | Santa Barbara High School | 1983 | 979.4/Santa Barbara/B5/San/1983 |
| Olive and Gold, Santa Barbara High School Yearbook, 1984 | Santa Barbara High School | 1984 | 979.4/Santa Barbara/B5/San/1984 |
| Olive and Gold, Santa Barbara High School Yearbook, 1986 | Santa Barbara High School | 1986 | 979.4/Santa Barbara/B5/San/1986 |
| Olive and Gold Yearbook, 1987 | Santa Barbara High School | 1987 | 979.4/Santa Barbara/B5/San/1987 |
| Olive and Gold, Santa Barbara High School Yearbook, 1987- 1988 | Santa Barbara High School | 1988 | 979.4/Santa Barbara/B5/San/1987-88 |
| Olive and Gold, Santa Barbara High School Yearbook, 1989 | Santa Barbara High School | 1989 | 979.4/Santa Barbara/B5/San/1989 |
| Olive and Gold Yearbook, 1990 | Santa Barbara High School | 1990 | 979.4/Santa Barbara/B5/San/1990 |
| Olive and Gold Yearbook, 1992 | Santa Barbara High School | 1992 | 979.4/Santa Barbara/B5/San/1992 |
| Olive and Gold Yearbook, 1999-2000 | Santa Barbara High School | 2000 | 979.4/Santa Barbara/B5/San/1999-2000 |
| Olivera Family (Old Santa Barbara Families) | Olivera Family | S/929.2/Olivera// | |
| Omaha Beachhead (6 June-13 June 1944) | Historical Division, War Department | n.d. | 973.9//M2/His |
| Omaha’s Historic Prospect Hill Cemetery (Nebraska) | Baumann, Louise Bloom | 1990 | 978.2/Douglas/V3/Bau |
| Omitted Chapters from Hotten's | Hotten, John Camden | 1983 | 929.3//W2/Hot |
| On a Bend of The River | Graff, Jane | 1967 | 978.2/Seward/H2/Gra |
| On Santa Cruz Island, The Ranching Recollections of Clifford McElrath | McElrath, Clifford | 1993 | 979.4/Santa Barbara/H2/Mce |
| On The Duarte | Moore, R. Aloysia | 1976 | 979.4/Los Angeles/H2/Moo |
| On the Trail (1983-1985*) | Brown County Genealogical Society | P/USA-OH/Brown// | |
| One Hundred and Fiftieth Anniversary of the Settlement of Boscawen and Webster, Merrimack Co., N. H., August 16, 1883, also Births Recorded on the Town Records from 1733 to 1850 | 1884 | 974.2/Merrimack/H2/ | |
| One Thousand Years of Hubbard History, 866 to 1895 | Day, Edward Warren | 1895 | 929.2/Hubbard//Day |
| One Year’s Soldiering, Embracing the Battles of Fort Donelson and Shiloh and the Capture of Two Hundred Officers and Men of the Fourteenth Iowa Infantry, and Their confinement Six Months and a Half in Rebel Prisons | Kiner, F. F. | 1863 | 973.7//M2/Kin |
| The Only Way to Cross | Maxtone-Graham, John | 1972 | 387//H2/Max |
| Onondaga County (New York) Federal Census 1800 | Tree Talks | 1982 | 974.7/Onondaga/X2/Tre/1800 |
| Onondaga County Wills, New York 1796-1823, volume 1 | Hanson Heritage Publications | 1981 | 974.7/Onondaga/P2/Han/V. 1 |
| Ontario (Canada) Marriage Notices | Wilson, Thomas B. | 1982 (1997) | 971.3//B3/Wil |
| Ontario (Canada) People, 1796-1803 | Fitzgerald, E. Keith | c1993 | 971.3//D4/Fit |
| Ontario Cemetery Finding Aid 5 | GenRef, Inc. | 1996 | C/971.3//V3/Gen |
| An Open Path: Christian Missionaries 1515-1914 | Beeching, Jack | 1982 | 970//K2/Bee |
| Open Range and Hidden Silver (Arizona) | Ready, Alma | 1973 | 979.1/Santa Cruz/H2/Rea |
| Operations of the U.S. Army under command of Maj. Gen. W. T. Sherman in Georgia , 1864. Siege of Atlanta, GA 1864. | M/973.7//E7/ | ||
| Oral History | Santa Barbara County Genealogical Society | L/929.3/// | |
| Orange County Genealogical Society (New York) (1971-2002*) | Orange County, New York Genealogical Society | P/USA-NY/Orange// | |
| Orange County Genealogical Society Quarterly (1971-2002) | Orange County Genealogical Society | P/USA-NY/Orange/D25/ | |
| The Orange County Genealogical Society Quarterly (California) (1964-1999*) | Orange County, California, Genealogical Society | P/USA-CA/Orange// | |
| Orange County Records (North Carolina), v. 9, Inventories and Accounts of Sales, 1800-1808 | Bennett, William Doub | 1995 | 975.6/Orange/R2/Ben/V.9 |
| Orange County, Virginia, Will Book 2, 1744-1778 | Dorman, John Frederick | 1961 | 975.5/Orange/P2/Dor/1774-1778 |
| The Order of the Founders and Patriots of America Register, Lineages of Associates, 1896-1933, v. 1 | Order of the Founders and Patriots of America | 1994 | 929.3//D22/Ord/V.1 |
| The Order of the Founders and Patriots of America Register, Lineages of Associates, 1896-1933, v. 2 | Order of the Founders and Patriots of America | 1994 | 929.3//D22/Ord/V.2 |
| The Order of the Founders and Patriots of America Register, Lineages of Associates, 1896-1933, v. 3 | Order of the Founders and Patriots of America | 1994 | 929.3//D22/Ord/V.3 |
| The Order of the Founders and Patriots of America Register, Lineages of Associates, 1896-1933, v. 4 | Order of the Founders and Patriots of America | 1994 | 929.3//D22/Ord/V.4 |
| Orderly Books of the Fourth New York Regiment 1778-1780 and The Second New York Regiment 1780-1783 | Tallmadge, Samuel | 1932 | 974.7//M2/Tal |
| An Ordinary of Arms, Contained in the Public Register of all Arms and Bearings in Scotland, 2nd ed. | Paul, James Balfour | 1969 | 929.6//D6/Pau |
| Ordnance Survey Interactive Atlas of Great Britain 1996 | Ordnance Survey | 1996 | C/942//E7/Ord |
| Ordnance Survey Memoirs of Ireland, Volume One, Parishes of County Armagh, 1835-8 | Day, Angelique | 1990 | 941.5//E5/Day/V.1 |
| Ordnance Survey Memoirs of Ireland, Volume Two, Parishes of County Antrim (i), 1838-9 | Day, Angelique | 1990 | 941.5//E5/Day/V.2 |
| Ordnance Survey Memoirs of Ireland, Volume Three, Parishes of County Down I, 1834-6, South Down | Day, Angelique | 1990 | 941.5//E5/Day/V.3 |
| Ordnance Survey Memoirs of Ireland, Volume Four, Parishes of County Fermanagh I, 1834-5. | Day, Angelique | 1990 | 941.5//E5/Day/V.4 |
| Ordnance Survey Memoirs of Ireland, Volume Five, Parishes of County Tyrone I, 1821, 1823, 1831-6. | Day, Angelique | 1990 | 941.5//E5/Day/V.5 |
| Ordnance Survey Memoirs of Ireland, Volume Six, Parishes of County Londonderry I, 1830, 1834, 1836. | Day, Angelique | 1990 | 941.5//E5/Day/V.6 |
| Ordnance Survey Memoirs of Ireland, Volume Seven, Parishes of County Down II, 1832-4, 1837. | Day, Angelique | 1991 | 941.5//E5/Day/V.7 |
| Ordnance Survey Memoirs of Ireland, Volume Eight, Parishes of County Antrim II 1832-8, Lisburn and South Antrim | Day, Angelique | 1991 | 941.5//E5/Day/V.8 |
| Ordnance Survey Memoirs of Ireland, Volume Nine, Parishes of County Londonderry II, 1833-5, Roe Valley Central. | Day, Angelique | 1991 | 941.5//E5/Day/V.9 |
| Ordnance Survey Memoirs of Ireland, Volume Ten, Parishes of County Antrim III, 1833, 1835, 1839-40, Larne and Island Magee. | Day, Angelique | 1991 | 941.5//E5/Day/V.10 |
| Ordnance Survey Memoirs of Ireland, Volume Eleven, Parishes of County Londonderry III, 1831-5, Roe Valley Lower. | Day, Angelique | 1991 | 941.5//E5/Day/V.11 |
| Ordnance Survey Memoirs of Ireland, Volume Twelve, Parishes of County Down III, 1833-8, Mid-Down. | Day, Angelique | 1992 | 941.5//E5/Day/V.12 |
| Ordnance Survey Memoirs of Ireland, Volume Thirteen, Parishes of County Antrim IV, 1830-8, Glens of Antrim | Day, Angelique | 1992 | 941.5//E5/Day/V.13 |
| Ordnance Survey Memoirs of Ireland, Volume Fourteen, Parishes of County Fermanagh II, 1834-5 | Day, Angelique | 1992 | 941.5//E5/Day/V.14 |
| Ordnance Survey Memoirs of Ireland, Volume Fifteen, Parishes of County Londonderry IV, 1824, 1833-5 | Day, Angelique | 1992 | 941.5//E5/Day/V.15 |
| Ordnance Survey Memoirs of Ireland, Volume Sixteen, Parishes of County Antrim V, 1830-5, 1837-8 | Day, Angelique | 1992 | 941.5//E5/Day/V.16 |
| Ordnance Survey Memoirs of Ireland, Volume Seventeen, Parishes of County Down IV, 1833-7 | Day, Angelique | 1992 | 941.5//E5/Day/V.17 |
| Ordnance Survey Memoirs of Ireland, Volume Eighteen, Parishes of County Londonderry V, 1830, 1833, 1836-7 | Day, Angelique | 1993 | 941.5//E5/Day/V.18 |
| Ordnance Survey Memoirs of Ireland, Volume Nineteen, Parishes of County Antrim VI, 1830, 1833, 1835-8 | Day, Angelique | 1993 | 941.5//E5/Day/V.19 |
| Ordnance Survey Memoirs of Ireland, Volume Twenty, Parishes of County Tyrone II, 1825, 1833-5, 1840 | Day, Angelique | 1993 | 941.5//E5/Day/V.20 |
| Ordnance Survey Memoirs of Ireland: Parishes of County Antrim VII, 1832-8 | Day, Angelique | 1993 | 941.5//E5/Day/V.21 |
| Ordnance Survey Memoirs of Ireland: Parishes of County Londonderry VI, 1831, 1833, 1835-6 | Day, Angelique | 1993 | 941.5//E5/Day/V.22 |
| Ordnance Survey Memoirs of Ireland, Volume Twenty-Three, Parishes of County Antrim VIII, 1831-5, 1837-8 | Day, Angelique | 1993 | 941.5//E5/Day/V.23 |
| Ordnance Survey Memoirs of Ireland, Volume Twenty-Four, Parishes of County Antrim IX, 1830-2, 1835, 1838-9 | Day, Angelique | 1994 | 941.5//E5/Day/V.24 |
| Ordnance Survey Memoirs of Ireland, Volume 25, Parishes of County Londonderry VII, 1834-5, North-West Londonderry | Day, Angelique | 1994 | 941.5//E5/Day/V.25 |
| Ordnance Survey Memoirs of Ireland, Volume 26, Parishes of County Antrim X, 1830-1, 1833-5, 1839-40, East Antrim Glynn, Inver, Kilroot and Templecorran | Day, Angelique | 1994 | 941.5//E5/Day/V.26 |
| Ordnance Survey Memoirs of Ireland, Volume 27, Parishes of County Londonderry VIII, 1830, 1833-7, 1839, East Londonderry | Day, Angelique | 1994 | 941.5//E5/Day/V.27 |
| Ordnance Survey Memoirs of Ireland, Volume 28, Parishes of County Londonderry IX, 1832-8, West Londonderry | Day, Angelique | 1995 | 941.5//E5/Day/V.28 |
| Ordnance Survey Memoirs of Ireland, Volume 29, Parishes of County Antrim XI, 1832-3, 1835-9, Antrim Town and Ballyclare | Day, Angelique | 1995 | 941.5//E5/Day/V.29 |
| Ordnance Survey Memoirs of Ireland, Volume 30, Parishes of County Londonderry X, 1833-5, 1838, Mid-Londonderry | Day, Angelique | 1995 | 941.5//E5/Day/V.30 |
| Ordnance Survey Memoirs of Ireland, Volume 31, Parishes of County Londonderry XI, 1821, 1833, 1836-7, South Londonderry | Day, Angelique | 1995 | 941.5//E5/Day/V.31 |
| Ordnance Survey Memoirs of Ireland, Volume 32, Parishes of County Antrim XII, 1832-3, 1835-40, Ballynure and District | Day, Angelique | 1995 | 941.5//E5/Day/V.32 |
| Ordnance Survey Memoirs of Ireland, v. 33, Parishes of County Londonderry XII, 1829-30, 1832, 1834-36, Coleraine and Mouth of the Bann | Day, Angelique | 1995 | 941.5//E5/Day/v. 33 |
| Ordnance Survey Memoirs of Ireland, v. 34, Parishes of County Londonderry XIII, 1831-8, Clondermot and the Waterside | Day, Angelique | 1996 | 941.5//E5/Day/v. 34 |
| Ordnance Survey Memoirs of Ireland, v. 35, Parishes of County Antrim XIII, 1833, 1835, 1838, Templepatrick and district | Day, Angelique | 1996 | 941.5//E5/Day/v. 35 |
| Ordnance Survey Memoirs of Ireland, v. 36, Parishes of County Londonderry XIV, 1833-4, 1836, 1838, Faughanvale | Day, Angelique | 1996 | 941.5//E5/Day/v. 36 |
| Ordnance Survey Memoirs of Ireland, v. 37, Parishes of County Antrim XIV, 1833-1839-40, Carrickfergus | Day, Angelique | 1996 | 941.5//E5/Day/v. 37 |
| Ordnance Survey Memoirs of Ireland, v. 38, Parishes of County Donegal I, 1833-5, North-East Donegal | Day, Angelique | 1997 | 941.5//E5/Day/v. 38 |
| Ordnance Survey Memoirs of Ireland, v. 39, Parishes of County Donegal II, 1835-6, Mid, west and South Donegal | Day, Angelique | 1997 | 941.5//E5/Day/v. 39 |
| Ordnance Survey Memoirs of Ireland, v. 40, Counties of South Ulster, 1834-8, Cavan, Leitrim, Louth, Monaghan and Sligo | Day, Angelique | 1998 | 941.5//E5/Day/v. 40 |
| Oregon | Santa Barbara County Genealogical Society | L/979.5/// | |
| Oregon Burial Site Guide | Byrd, Dean H. | 2001 | 979.5//V3/Byr |
| Oregon End of the Trail Researchers (1976-1977*) | End of Trail Researchers | P/USA-OR/Marion// | |
| Oregon For The Curious | Friedman, Ralph | 1972 (1973) | 979.5//H2/Fri |
| Oregon Genealogical Society Quarterly (1982-2001*) | Oregon Genealogical Society | P/USA-OR/// | |
| Oregon Guide to Genealogical Sources, rev. ed. | Lenzen, Connie | 1996 | 979.5//D27/Len |
| Oregon Newspaper Death Notices 1864-1902 | Toftdahl, Gregory | 1995 | F/979.5/Lane/B3/Tof/1864-1902 |
| Oregon Spectator Index 1846 - 1854, Vols. 1, 2, Index | Works Progress Administration | 1941 | 979.5//B3/WPA/V.1,2 |
| Oregon State Penitentiary; Records of Inmates During the Administration of A. N. Gilbert, March 11, 1895 - April 1, 1899 | Oregon Genealogical Society | 2000 | 979.5//D4/Ore |
| The Oregon Trail, Sketches of Prairie and Rocky-Mountain Life | Parkman, Francis | 1949 | 979//H2/Par |
| Oregon Vital Records: Deaths 1903-1998 | Ancestry.com | 2000 | C/979.5//V2/Anc/1903-1998 |
| Organization and Administration of the Union Army 1861-1865, Vols. I and II | Shannon, Fred Albert | 1928 | 973.7//M2/Sha/V.1,2 |
| Organization Index to Pension Files of Veterans Who Served Between 1861 and 1900 | National Archives and Record Administration | n.d. | 973.7//M2/Nat |
| Organizing and Preserving Your Heirloom Documents | Sturdevant, Katherine Scott | 2002 | 929//D27/Stu |
| Organizing Your Family History Search | Carmack, Sharon DeBartolo | 1999 | R/929//D27/Car |
| Origin and Evolution of Illinois Counties | Edgar, Jim | 1989 | 977.3//H2/Edg |
| Origin and Signification of Scottish Surnames with a Vocabulary of Christian Names | Sims, Clifford Stanley | 1862 (1969) | 941//D4/Sim |
| The Origin of English Surnames | Reaney, Percy H. | 1967 | 929.4//D4/Rea |
| The Origin of Place Names in Tompkins County | Norris, W. Glenn | 1951 | 974.7/Tompkins/E5/Nor |
| Original Index Book Showing the Revolutionary Claims Filed in South Carolina Between Aug. 20, 1783 and Aug. 31, 1786 | McCall, James | 1914 | 975.7//M2/McC/Index |
| Original Land Titles in Delaware, Commonly known as The Duke of York Record from 1646 to 1679 | Delaware Official State Archives | 1903 | 975.1//R2/Del |
| Original Lists of Emigrants in Bondage from London to the American Colonies, 1719-1744 | Kaminkow, Marion | 1967 | 929.3//W2/Kam |
| Original Lists of Persons of Quality. 1600-1700 | Hotten, John Camden | 1874 (1983) | 929.3//W2/Hot |
| Original Records of Maine Towns and Cities: Town of Atkinson 1744-1903 | Picton Press | 2005 | C/974.1/Piscataquis/V2/Pic/#603 |
| Original Records of Maine Towns and Cities: Town of Brewer 1743-1840, v. 1 | Picton Press | 2005 | C/974.1/Penobscot/V2/Pic/v.1/#604 |
| Original Records of Maine Towns and Cities: Town of Brewer 1743-1840, v. 2 | Picton Press | 2005 | C/974.1/Penobscot/V2/Pic/v.2/#605 |
| Original Records of Maine Towns and Cities: Town of Brewer 1743-1840, v. 3 | Picton Press | 2005 | C/974.1/Penobscot/V2/Pic/v.3/#606 |
| Original Records of Maine Towns and Cities: Town of Enfield 1836-1899 | Picton Press | 2005 | C/974.1/Penobscot/V2/Pic/#607 |
| The Original Scots Colonists of Early America, 1612-1783 | Dobson, David | 1989 | 941//W2/Dob/1607-1783 |
| The Original Scots Colonists of Early America, Caribbean Supplement 1611-1707 | Dobson, David | 1999 | 941//W2/Dob/suppl. |
| The Original Scots Colonists of Early America, Supplement: 1607-1707 | Dobson, David | 1998 | 941//W2/Dob/Suppl. |
| Origins (1990-2002*) - Southwest Georgia Counties | Thomasville Genealogical History and Fine Arts Library | P/USA-GA/Thomas// | |
| Origins of New Mexico Families, a Genealogy of the Spanish Colonial Period, rev. ed. | Chavez, Angelico | 1992 | 978.9//D2/Cha |
| The Origins of Some Anglo-Norman Families | Loyd, Lewis C. | 1951 (1985) | 942//D3/Loy |
| The Origins of Some Anglo-Norman Families. (V. 103) | Harleian Society | 1951 | 942//D5/Har/V.103 |
| Orkney, the Magnetic North, rev. ed. | Gunn, J. | 1937 | 941/Orkney/E6/Gun |
| Ormand History and Descendants of James Ormand, Sr., 1669 - 1766 | Ormand, Ben F. Jr. | 1983 | 929.2/Ormand//Orm |
| The Ormskirk and District Family Historian (1991*) | Ormskirk and District Family History Society | P/ENG/Lancashire// | |
| Ortega Family (Old Santa Barbara Families) | Ortega Family | S/929.2/Ortega// | |
| Osage County, Kansas, Index to the County Probate Records | Osage County Historical Society | 1997 | 978.1/Osage/P2/Osa/index |
| Osceola, 1871-1971 | Osceola Centennial Book Committee | 1972 | 978.2/Polk/H2/Osc |
| Oshkosh, One Hundred Years a City | Karstaedt, Clinton F. | 1953 | 977.5/Winnebago/H2/Kar |
| Ostander Family Association | Ostander Family | S/929.2/Ostander// | |
| Osterley Park, London | Tomlin, Maurice | 1972 | L/942//J7/ |
| Oswego County (New York) Federal Census 1860 | Tree Talks | 1987 | 974.7/Oswego/X2/Tre/1860 |
| Other Merchants and Sea Captains of Old Boston | State Street Trust Company | 1919 | 974.4/Suffolk/D3/Sta |
| Otsego County (New York) Federal Census 1860 | Tree Talks | 1995 | 974.7/Otsego/X2/Tre/1825 |
| Ottawa and Kingston City Directory - 1875 | McAlpine, Everett & Co. | 2005 | C/971.3//E4/Mca |
| Ottawa Branch News, Ontario Genealogical Society (1997-1998*) | Ontario Genealogical Society | P/CDN-ONT/// | |
| Ottley Family (Old Santa Barbara Families) | Ottley Family | S/929.2/Ottley// | |
| Otto Ping, Photographer of Brown County, Indiana, 1900-1940 | Hartley, W. Douglas | 1994 | 977.2/Brown/H2/Har |
| Ouderkerk Family Genealogy | Ouderkerk Family | S/929.2/Ouderkerk// | |
| Our Ancestors of the Labrador Straits, A Genealogical Account of Some Early European Settlers, and Their Descendants in the Labrador Straits | McDonald, Ellen | 1999 | 971.8//D2/McD |
| Our Ancestral Plots. 184 Complete Caldwell County, Kentucky, Cemeteries | Kyle, Arawana | 1967 | 976.9/Caldwell/V3/Kyl |
| Our County and Its People, a Descriptive and Biographical Record of Bristol County, Massachusetts | Fall River News | 1899 | 974.4/Bristol/H2/Fal |
| Our Family: Hansons, Brandts, Carlsons and Stromstedts | Carlson, Martha Hanson | 1970 | 929.2/Hanson//Car |
| Our Family Heritage (1974-1975*) | Genealogical Research | P/USA-OH/// | |
| Our First One-Hundred Years, First Baptist Church of Cave Springs, 1880-1980 | Fagala, Lillian | n.d. | 976.7/Benton/K2/Fag |
| Our French-Canadian Ancestors, Vols. I, II, III | Laforest, Thomas J. | 1983 | 971//D2/LaF/V.1-3 |
| Our French-Canadian Ancestors, Volume IV | Laforest, Thomas J. | 1986 | 971//D2/Laf/V.4 |
| Our French-Canadian Ancestors, Volume V | Laforest, Thomas J. | 1983 | 971//D2/Laf/V.5 |
| Our French-Canadian Ancestors, Volume VI | Laforest, Thomas J. | 1983 | 971//D2/Laf/V.6 |
| Our French-Canadian Ancestors, Volume VII | Laforest, Thomas J. | 1983 | 971//D2/Laf/V.7 |
| Our French-Canadian Ancestors, Volume VIII | Laforest, Thomas J. | 1989 | 971//D2/Laf/V.8 |
| Our French-Canadian Ancestors, Volume IX | Laforest, Thomas J. | 1989 | 971//D2/Laf/V.9 |
| Our French-Canadian Ancestors, Volume X | Laforest, Thomas J. | 1985 | 971//D2/Laf/V.10 |
| Our French-Canadian Ancestors, Volume XI | Laforest, Thomas J. | 1986 | 971//D2/Laf/V.11 |
| Our French-Canadian Ancestors, Volume XII | Laforest, Thomas J. | 1986 | 971//D2/Laf/V.12 |
| Our French-Canadian Ancestors, Volume XIII | Laforest, Thomas J. | 1987 | 971//D2/Laf/V.13 |
| Our French-Canadian Ancestors, Volume XIV | Laforest, Thomas J. | 1987 | 971//D2/Laf/V.14 |
| Our French-Canadian Ancestors, Volume XV | Laforest, Thomas J. | 1988 | 971//D2/Laf/V.15 |
| Our French-Canadian Ancestors, Volume XVI | Laforest, Thomas J. | 1989 | 971//D2/Laf/V.16 |
| Our French-Canadian Ancestors, Volume XVII | Laforest, Thomas J. | 1990 | 971//D2/Laf/V.17 |
| Our Heritage (1983-1989*) | Adams County Genealogical Society | P/USA-OH/Adams// | |
| Our Heritage, A History of Ida County | Godbersen, Bruce L. | 1977 | 977.7/Ida/H2/God |
| Our Heritage (Texas) (1992-2002*) | San Antonio Genealogical Historical Society | P/USA-TX/Bexar// | |
| Our Honorable Ancestors and Their Families | Wagner, Louis, Jr., Mrs. | 1981 | 979.4//D3/Wag |
| Our Italian Surnames | Fucilla, Joseph Guerin | 1949 | 929.4//D4/Fuc |
| Our Lady of Guadalupe Baptismal Registry, Conejos, Colorado, 1861-1868 | Salazar, David H. | 1992 | 978.8/Conejos/K2/Sal |
| Our Lady of Mt. Carmel Church in Montecito, 1856-1988 (California) | Maher, James | 1988 | 979.4/Santa Barbara/H2/Mah |
| Our Life, 1882-1982, Akron, Iowa | Taylor, Karen | 1982 | 977.7/Plymouth/H2/Tay |
| Our Miller Ancestry | Singer, Peggy Miller | 2001 | 929.2/Miller//Sin |
| Our Names, Where They Came From and What They Mean | Lambert, Eloise | 1960 | 929.4//D4/Lam |
| Our Native Americans and Their Records of Genealogical Value, Vol. II | Kirkham, E. Kay | 1984 | E/929//F3/Kir/V.2 |
| Our Native Americans and Their Records of Genealogical Value | Kirkham, E. Kay | 1980 | 929//F3/Kir/v. 1 |
| Our People and Where They Rest: a Visit to Eighty-One Old Cemeteries in Eastern Oklahoma | Tyner, James W. | 1973 | 976.6//V3/Tyn |
| Our Pioneers East and West of the Mississippi, Family Sketches, Andrew Mershon and His Descendants | Mershon, Grace Lucile Olmstead | 1955 | 929.2/Mershon//Mer |
| Our Polk County Heritage | Osceola Centennial Committee | 1975 | 978.2/Polk/D3/Osc |
| Our Quaker Ancestors | Berry, Ellen Thomas | 1987 | 929.3//K2/Ber |
| Our Quaker Friends of Ye Olden Time | Bell, James P. | 1905 (1976) | 975.5/Hanover/K2/Bel |
| Our Thompson Family in Maine, New Hampshire and the West | Sinnett, Charles Nelson, Rev. | 1907 | 929.2/Thompson//Sin |
| Our Town, Reminiscences and Historical Studies of Brunswick, Maine | Helmreich, Louise R., Ph. D. | 1967 | 974.1/Cumberland/H2/Hel |
| Our Vanishing Landscape | Sloane, Eric | 1955 (1976) | 973//H2/Slo |
| Out West, Los Angeles and Her Makers | Lummis, Chas. F. | 1909 | 979.4/Los Angeles/H2/Lum |
| An Outline History of Tioga and Bradford Counties in Pennsylvania, Chemung, Steuben, Tioga, Tompkins and Schuyler in New York | Gazette Company | 1885 | 974.8/Tioga/H2/Gaz |
| Outstanding West Virginians of 1969-1970. | Kelly, Richard A. | 1969 | 975.4//D3/Kel |
| Outstanding Young Women of America, 1965 Edition | Outstanding Young Women of Americas | 1966 | 929.2//D3/Out |
| Outstanding Young Women of America, 1970 | Outstanding Young Women of America | 1970 | 929.2//D3/Out/1970 |
| Over One Hundred Years of Old Oregon City | Gardner, Wilmer | 1976 (1987) | 979.5/Clackamas/H2/Gar |
| Over the Misty Blue Hills, the Story of Cocke County, Tennessee | O’Dell, Ruth Webb | 2001 | 976.8/Cocke/H2/Ode |
| Over the Mountain Men. Their Early Court Records in Southwest Virginia | Worrell, Anne Lowry | 1983 | 975.5//V2/Wor |
| Over the Portage, Early History of the Upper Miramichi (Canada) | Mackinnon, William R., Jr. | 1984 | 971.5//H2/Mac |
| Overcoming Dead Ends | Carlberg, Nancy Ellen | 1991 | 929//D27/Car |
| Overland in 1846: Diaries and Letters of the California-Oregon Trail, volume 1 | Morgan, Dale | 1993 | 979//D3/Mor/V.1 |
| Overland Journal (Missouri)(1997-1998*) | Oregon- California Trails Association | P/USA-MO/// | |
| Owens - Elliott Family | Owens Family | S/929.2/Owens// | |
| Owyhee County Gleanings | Statham, Wilma Lewis | 1964 (1988) | 979.6/Owyhee/V2/Sta |
| The Oxford Companion to Local and Family History | Hey, David | 1996 | 942//D27/Hey |
| The Oxford Companion to Ships & The Sea | Kemp, Peter | 1976 | 387//H2/Kem |
| The Oxford Dictionary of English Christian Names, 3d ed. | Withycombe, E. G. | 1977 | 929.4//D4/Wit |
| Oxford English Dictionary. Compact Edition (V.1-2) | Oxford University Press | 1971 (1973) | 423//A5/Oxf/V.1,2 |
| The Oxford English Dictionary, supp. v. 1 | Oxford University | 1933 | 423//A5/Oxf/supp. v. 1 |
| The Oxford English Dictionary, supp. v. 2 | Oxford University | 1933 | 423//A5/Oxf/supp. v. 2 |
| The Oxford English Dictionary, supp. v. 3 | Oxford University | 1933 | 423//A5/Oxf/supp. v. 3 |
| The Oxford English Dictionary, supp. v. 4 | Oxford University | 1933 | 423//A5/Oxf/supp. v. 4 |
| The Oxford English Dictionary, v. 1 | Oxford University | 1933 | 423//A5/Oxf/v. 1 |
| The Oxford English Dictionary, v. 2 | Oxford University | 1933 | 423//A5/Oxf/v. 2 |
| The Oxford English Dictionary, v. 3 | Oxford University | 1933 | 423//A5/Oxf/v. 3 |
| The Oxford English Dictionary, v. 4 | Oxford University | 1933 | 423//A5/Oxf/v. 4 |
| The Oxford English Dictionary, v. 5 | Oxford University | 1933 | 423//A5/Oxf/v. 5 |
| The Oxford English Dictionary, v. 6 | Oxford University | 1933 | 423//A5/Oxf/v. 6 |
| The Oxford English Dictionary, v. 7 | Oxford University | 1933 | 423//A5/Oxf/v. 7 |
| The Oxford English Dictionary, v. 8 | Oxford University | 1933 | 423//A5/Oxf/v. 8 |
| The Oxford English Dictionary, v. 9 | Oxford University | 1933 | 423//A5/Oxf/v. 9 |
| The Oxford English Dictionary, v. 10 | Oxford University | 1933 | 423//A5/Oxf/v. 10 |
| The Oxford English Dictionary, v. 11 | Oxford University | 1933 | 423//A5/Oxf/v. 11 |
| The Oxford English Dictionary, v. 12 | Oxford University | 1933 | 423//A5/Oxf/v. 12 |
| The Oxford English Dictionary, v. 13 | Oxford University | 1933 | 423//A5/Oxf/v. 13 |
| The Oxford Guide to Family History | Hey, David | 1993 | 942//D27/Hey |
| Oxford in Pictures, Oxfordshire | Fraser, Maxwell | L/942//J7/ | |
| The Oxfordshire Family Historian (England) (1990-2002*) | Oxfordshire Family History Society | P/ENG/Oxfordshire// | |
| Oysterville: Roads to Grandpa's Village | Espy, Willard R. | 1977 | 979.7/Pacific/H2/Esp |
| Ozar’Kin (Missouri) (1981, 1988-1997*) | Ozark’s Genealogical Society | P/USA-MO/Greene// | |
| Ozark Happenings Newsletter (Missouri) (1990-2002*) | Texas County Historical and Genealogical Society | P/USA-MO/Texas// |