
California Genealogical Society
The library is open on Thursdays through Saturdays (10-2). See Directions and Parking for info on Saturday visits, which have different procedures than weekdays. See our Events and Education for online and in-person sessions.
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Connecting people to their diverse family heritage
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) in Oakland. The society offers research services, online indexes and databases, and a research library housing over 38,000 reference materials from California, the United States, and around the world. CGS is a 501(c)(3) nonprofit corporation. The library is conveniently located in Berkeley at 1841 Berkeley Way.
Phone: (510) 663-1358
FTM-SIG Mtg Jun 20, 2026 Web Search Workspace, New CGS Home in Berkeley
Sat, Jun 20 • 1:00 PM
Online & at California Genealogical Library
From $0.00
2026 Intro to Genealogy - 1st Saturday Free! Overview and Focused Topics
Sat, Jun 27 • 10:00 AM and 3 more
Online and in Person at CGS Library
From $0.00
Getting Started with AI for Newspaper Research
Sat, Jun 27 • 1:00 PM
Online & at California Genealogical Library
From $0.00
Exploring Resources for California Genealogy
Sat, Jul 11 • 1:00 PM
Online & at California Genealogical Library
From $0.00
FTM-SIG Mtg Jun 20, 2026 Web Search Workspace, New CGS Home in Berkeley
Sat, Jun 20 • 1:00 PM
Online & at California Genealogical Library
From $0.00
2026 Intro to Genealogy - 1st Saturday Free! Overview and Focused Topics
Sat, Jun 27 • 10:00 AM and 3 more
Online and in Person at CGS Library
From $0.00
Getting Started with AI for Newspaper Research
Sat, Jun 27 • 1:00 PM
Online & at California Genealogical Library
From $0.00
Exploring Resources for California Genealogy
Sat, Jul 11 • 1:00 PM
Online & at California Genealogical Library
From $0.00