| Index to "Cemetery Inscriptions of Colusa County, California, Volume I". Covers Arbuckle, College City, Grand Island and John's District Cemeteries. Contributed by Patricia Rumiano. |
| Index to "Cemetery Inscriptions of Colusa County, California, Volume 2". Covers Calmes, Leesville, Lodoga, Maxwell, Princeton, Sites, Stonyford and Williams Cemeteries. Contributed by Patricia Rumiano. |
| Index to "Cemetery Inscriptions of Colusa County, California, Volume 3". Covers Colusa Community and Catholic Holy Cross cemeteries and the Goad Cemetery. Contributed by Patricia Rumiano. |
| Index to gleanings from the "Sun" newspaper, Colusa Ca The gleanings are of local events that took place from 1870 through 1892. Contributed by Patricia Rumiano. |
| Index to the 1878 Colusa County, California annual - being a Holiday Supplement to the Weekly Colusa Sun - January 1, 1878. Contributed by Patricia Rumiano. |
| Index to Wills and Probate records of Colusa County, Ca 1850-1944. Contributed by Patricia Rumiano. |
| Index to Federal Land Records - California Land Patents Database |