The Center for the Study of Political Graphics collection contains print materials from the 1960s through the present. The majority of the collection consists of political posters that record the Chicanx/Latinx perspective of national and international events. Subjects and topics include social change, protest, United Farm Workers, healthcare, civil rights, and more. Creators featured in the collection include some of the best known Chicano artists such as Rupert Garcia (Oakland), Barbara Carrasco (Los Angeles), Malaquias Montoya (Davis) and Ester Hernandez (San Francisco); important art collectives such as the Royal Chicano Air Force (Sacramento), Self Help Graphics (Los Angeles), Mechicano Art Center (Los Angeles), Mexica Movement (Los Angeles) and Mission Cultural Center (San Francisco). The collection also includes younger and emerging artists such as Jesus Barraza, Melanie Cervantes, and Julio Salgado.
The Mammoth Museum (Southern Mono Historical Society) collection contains audiovisual material (moving images and audio) from the 1950s to 2000s. A majority of the collection consists of filmed oral interviews and recorded lectures concerning local history of Mono County, California. Subjects include oral history and recorded history lectures by Barbara Moore.
The Orange County Archives collection contains texts and audiovisual material (moving images and audio) from the 1910s to 2010s. A majority of the collection contains filmed footage and ledgers related to local history of Orange County, California. Subjects include DisneyLand, Knott's Berry Farm, and the Cypress Enterprise newspaper.
The Siskiyou Museum collection contains audiovisual materials (moving images and audio) from the 1930s to 1980s. A majority of the collection consists of film concerning the history of Siskiyou County. Subjects include wildlife, gold mining, and the timber industry.