The Petaluma Historic Library and Museum collection contains texts and audiovisual material (moving images, audio) and texts from the 1920s to 2010s. A majority of the collection consists of oral histories, interviews, and home movies concerning Petaluma Chicken Ranches, genealogy, the Argus Courier Newspaper, the Bojorques family and more. Other material includes texts such as oral transcripts and maps about the history of ranchos.
The University of California, Santa Cruz, Special Collections and Archives collection contains audiovisual material (moving images and audio) from the 1960s to 2000s. A majority of the collection consists of filmed footage documenting local history surrounding the University of California, Santa Cruz. Subjects include The People's Park Riot of 1969, the civil rights movement, and the construction of the university.
The Palo Alto Woman's Club collection contains text and audiovisual material (moving images and audio) from the 1890s to 2000s. A majority of the collection consists of text concerning financial statements and newsletters about the club. Other subjects include a written National Register of Historic Places nomination determining the property's eligibility for listing.