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. ________________________________________ 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 Uptown Oakland, one block north of the Paramount Theatre, at 2201 Broadway, Suite LL2. We are three blocks from the 19th Street BART Station.Phone: (510) 663-1358