Welcome! Whether you have Gold Rush ancestors or have no family connection to California, you will find extensive support for your genealogy research at the California Genealogical Society (CGS).

The goal of the California Genealogical Society is to connect people to their family heritage and to promote a spirit of diversity and inclusivity for our members and patrons. The California Genealogical Society does not tolerate discrimination in any form. 


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Proud to be Portuguese

After a brief history of Portuguese achievements in the Age of Discovery and of the Portuguese diaspora around the Atlantic Ocean, Ralph Severson, Director of the Oakland Family Search Library, will explain resources and methods for family history research in Portugal proper and its island autonomous regions of the Azores and Madeira. He'll illustrate the methods with stories of his own Portuguese ancestors.

Saturday, August 10, 1:00-4:00 PM

Details and Registration

Sugar Plantaion Workers in Hawaii

Immigrant Sugar Plantation Workers in Hawaii: A Multi-Ethnic Approach to Genealogy

For almost a century, people from all over the world came to Hawaii to work on the sugar plantations. Research on these immigrants reveals a wide range of experiences that did not always end in Hawaii but sometimes involved return to the homeland or migration to the mainland.  In addition to discussing sources of genealogical records and how to access them, this presentation will include examples of how historical and cultural context and chronicles of everyday life can provide rich and memorable impressions of plantation-era ancestors in Hawaii.

Saturday, September 14, 1:00-4:00 PM

Details and Registration


The California Nugget – The journal of the California Genealogical Society is published twice a year. Have you read our recent issue? Would you like to publish an article? See the contribution guidelines.


Tip of the Iceberg Poster – Support the library and help spread this important message. Buy three, get one free! Order now.


California Names Index includes pre-1905 deaths in San Francisco. Search for your surnames to see if we have records for your ancestor. Learn more.


Board of Directors Meeting: Second Saturday Monthly at 10:00 AM.

Historical Newspapers Thursday, August 8 6:00-8:00PM Details and Registration
Proud to be Portuguese Saturday, August 10 1:00-3:30PM Details and Registration
CGS Day at the Oakland FamilySearch Library Wednesday, August 14 11:00AM-1:00PM Details and Registration
DNA Q&A Thursday, August 15 6:30-8:00PM Details and Registration
Finding Your Immigrant Ancestor's Birthplace Using US Records Saturday, August 17 1:00-3:00PM Details and Registration
Using Genome-Mate Pro to Help With DNA Information Management Thursday, August 22 6:00-8:00PM Details and Registration
Make a Book the Easy Way Saturday, August 24 11:00AM-3:00PM
Beyond the Search Boxes on FamilySearch Thursday, August 29 6:00-8:00PM Details and Registration
Immigrant Sugar Plantation Workers in Hawaii: A Multi-Ethnic Approach to Genealogy Saturday, September 14 1:00-4:00PM Details and Registration
Read our blog to keep up with the latest news and coming events.

Visit Eventbrite to see and register for CGS events.

Visit Calendar of Events to see future events.

Looking for something genealogical to do this week? The Sutro Library's Genealogy Section maintains a Bay Area Genealogy Calendar with events at many local societies, libraries, and museums.