Local Genealogical Societies
- Contra Costa County Genealogical SocietyFounded in May, 1975. From that small beginning we have grown into an organization of over 100 members and roughly 100 exchange societies and organizations.
- San Ramon Valley Genealogical Society
- Mt. Diablo Genealogical SocietyP.O. Box 2062
Walnut Creek, CA 94595
The Mt. Diablo Genealogical Society can be contacted by email jcbed@sbcglobal.net - East Bay Genealogical SocietyEstablished in 1978 for the purpose of promoting interest in genealogy, biography, and related history.
- California SocietiesSearch for other California genealogy & historical societies
- Sutro Library Location & DirectionsThe Sutro Library has one of the largest genealogical collections west of Salt Lake City with extensive resources for states other than California and basic resources for California. The California Section of the California State Library, Sacramento, has more materials for California history and genealogy.
Special Collections: Over 7,000 family histories. 35,000 local histories and vital records titles. All U.S. census microfilms from 1790 to 1930, except 1890. - Sutro Library Hours
- California Genealogical Society and LibraryThe Society offers research services, online one-of-a-kind genealogical indexes and databases, and a research library.The society's library houses over 30,000 reference materials from California, the United States, and from around the World. Non-members pay $5. or free on the first Saturday. Volunteers are available to help in your search. Visit their website to find classes
- National Archives - Pacific RegionNARA's Pacific Region, San Francisco, located in our San Bruno facility, has extensive microfilm holdings of value for genealogy research.
Great Registers
Great Registers list registered voters and may include information such as birth dates, naturalization dates, address, and occupations.
Index to the Great Register, Contra Costa County, 1902 - (Provided by the Contra Costa County Library Heritage Collection Volunteers)
California Great Registers: The Heritage Collection includes the "California 1890 Great Register of Voters Index" a 3-volume set compiled by the California State Genealogical Alliance. The register provides names, birthplace, age, residence, county, registration date, and naturalization information for those registered to vote in 1890. Look for it in the California section of the Heritage Collection. (J. Carylye Parker has written an article on California's Great Registers that gives a general description of the Great Registers of California.)
Heritage Collection - Pleasant Hill Library
The Heritage Collection is made up of genealogical resources donated to the Pleasant Hill Library’s Genealogy Section. The collection comprises over 3000 items with emphasis on American genealogy. All materials are cataloged.
Materials include:
- General genealogical reference (e.g. “how to” source books, atlases, gazetteers)
- State genealgocial reference (e.g. vital records directories, census)
- Family histories
- War and pension lists for participants of wars
- Immigration and migration (e.g. passenger lists, etc.)
- Patriotic and heritage organizations (e.g. Mayflower descendants)
- Church records, cemeteries, mortuaries
- Records of wills and abstracts of records of wills, marriages, etc.
- Ethnic and cultural genealogy (e.g. England, Scotland, Ireland, Europe, Germany, Native American, African American, Canada, Huguenot, Heraldry)
- California 1890 Great Register of Voters Index- 3 volume set compiled by the California State Genealogical Alliance. Names, birthplace, age, residence, county, registration date, and naturalization information for those registered to vote in 1890.
- Periodicals
Contra Costa County
- Recorded Documents SearchThis is a database of public records for Contra Costa County. The database allows you to search for marriage records, fictitious business documents, and recorded documents. It also provides a place to request birth and death certificates from the county.
- Genealogy (GenWeb)The Contra Costa County Genealogy is part of the U.S. GenWeb Project and the California GenWeb Project. It Offers information Exchange, Lists & Links & Research Sites related to Contra Costa County.
Church of Jesus Christ of Latter-day Saints (LDS) Family History Centers
Family History Centers provide access to microfilms and microfiche to help patrons identify their ancestors.
| Antioch 2350 Jeffery Way Brentwood, CA 925-634-9004 |
Concord 3700 Concord Blvd Concord, CA 925-686-1766 |
| Danville 2949 Stone Valley Rd Alamo, CA 925-552-5920 |
Oakland Regional Family History Center 4766 Lincoln AvenueOakland, CA 94602 (510) 531-3905 |
Family Search - non-profit service sponsored by The Church of Jesus Christ of Latter-day Saints..
High School Yearbooks
A listing of yearbooks, available in Contra Costa County community libraries.
Heritage Collection - Research Assistance
Volunteers from the Contra Costa County Genealogical Society are available to help interested persons use the Heritage Collection (Pleasant Hill Library). Regularly scheduled hours are:
Tuesday: 1:00 PM -3:00 PM
Wednesday: 11:00 AM -1:00 PM
Thursday: 1:00 PM -3:00PM
Friday: 10:00 AM -12:00 PM
Tuesday: 1:00 PM -3:00 PM
Wednesday: 1:00 PM -3:00 PM
Friday: 10:00 AM -2:00 PM
Saturday: 1:00 PM -3:00 PM
Tuesday: 6:00 PM -8:00 PM
Wednesday: 11:00 AM -1:00 PM
Thursday: 2:00 PM -4:00 PM
Friday: 10:00 AM -12:00 PM
Tuesday: 1:00 PM -3:00 PM
Wednesday: 1:00 PM -3:00 PM
Thursday: 1:00 PM -3:00 PM
Friday: 1:00 PM -3:00 PM
Saturday: 11:00 AM -1:00 PM
No appointment is necessary, but you may call the Information Desk (925-646-6434) to verify that a docent is available. The Library is closed on Monday.
Bay Area Libraries with Inter-Library Loan Service
The Contra Costa County Library no longer offers Inter-Library Loan Service.
Patrons may request items they wish to borrow directly from libraries that participate in the Link+ program.
The following area libraries offer Inter-Library Loan Service:
Livermore Public Library
Oakland Public Library
Richmond Public Library
San Francisco Public Library
Vital Records
- Where to Write for Vital RecordsProvides the address and contact information for obtaining birth, marriage and death records in all 50 states.
- Contra Costa Vital Records - Antioch Ledger
- Contra Costa Vital Records - Contra Costa Gazette
Organizations
- Daughters of the American Revolution (Acalanes Chapter)Do you have a Revolutionary Patriot in your family tree? Membership in the Daughters of the American Revolution (DAR) honors and preserves the legacy of your Patriot ancestor.
- Daughters of the American Revolution (Anne Louckes Chapter)
- Daughters of the American Revolution (Mt. Diablo Chapter)
- Society of California Pioneers Established in 1850, The Society of California Pioneers is a not-for-profit museum, library, and cultural organization dedicated to advancing the knowledge and appreciation of early California history for the benefit of present and future audiences of all
- National Genealogical SocietyThe National Genealogical Society is an indispensable resource for genealogists and family historians seeking excellence in educational offerings, publications and materials, research and research guidance, and opportunities to interact with others.
- Los Californianos Los Californianos was created for the purpose of preserving the heritage of the early Hispanic Californians in Alta California
- San Franciso Bay Area Jewish Genealogical SocietyThe San Francisco Bay Area Jewish Genealogical Society (SFBAJGS) is a non-profit organization dedicated to the development, preservation and distribution of Jewish genealogical knowledge and material, and the sharing of techniques and tools with others who may be searching their Jewish Roots.

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