Our library is open for visits from 10 a.m. to 2 p.m. Wednesday – Friday. All visitors must register in advance. However, CGS members may visit on Friday without registering, as part of a new trial program. We are also open on the third Saturday of the month for some SIG meetings. See our updated COVID-19 Mitigation that reflects current county standards. See our Classes and Events for online and in-person sessions. See a video tour of our website.
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.
Sign Up for eNews
Get our monthly eNews delivered to your email inbox. Sign up to stay update on CGS news and events.
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
The CGS Library has over 38,000 genealogical books, historic maps, one-of-a kind manuscripts collection, and computers with programs for doing research. Find an experienced volunteer to get help. Take the virtual tour to plan a visit.
See Videos
Sign up for free e-News
HIRE A RESEARCHER