Connecting people to their diverse family heritage

Our library is open for visits from 10 a.m. to 2 p.m. Wednesday – Friday. Visitors must register in advance.  We will continue to require masks in our library for both volunteers and visitors for the time being and will reassess this policy in the future. We are also deferring decisions about reconvening in-person meetings and classes and Saturday hours. Thanks for your understanding as we balance the health and safety of our genealogy community.  Questions may be sent to [email protected]org. Our COVID-19 Mitigation remains in place. Please take advantage of our online presentations and resources — see our Classes and Events. See a video tour of our website and library.

Classes and Events

The California Genealogical Society (CGS) is more than just a research library. Come learn how to do genealogical research by taking classes. Learn about upcoming field trips, research trips, special events, and headline speakers.


Special Interest Groups (SIG)

The society has special interest groups for members to link up with others doing similar research.


Sign Up for Member Connections

Now you can connect with other CGS members who have similar research interests. Create your own profile and start reaching out.


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Sign Up for eNews

Get our monthly eNews delivered to your email inbox. Sign up to stay update on CGS news and events.


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Online Resources

Providing additional Online Resources on our website is a priority. These resources include lineage charts developed by our members, which provide finding aids and images. Search to find out if someone you are researching is included.


Visit Our Library

Visit our Library

The CGS Library has over 38,000 genealogical books, historic maps, a one-of-a kind manuscripts collection, and a bank of computers loaded with programs for doing research. Find an experienced volunteer to get help with your questions.


Get Started