The Campbell Museums collection contains texts from the late 1800s to the 1950s. The collection consists of newspaper publications including most issues of the Campbell (Interurban) Press and other publications such as Campbell Weekly Visitor.
The Glendale Library, Arts and Culture collection contains texts and images from the 1860s to 1990s. A majority of the collection consists of city directories. Other subjects include records related to aviation and the airfield in Glendale, California.
The Huntington Library collection contains images and audiovisual material (moving images and audio) from the 1900s to 2000s. A majority of the collection consists of film, oral history, and recorded interviews concerning working class history and the politics of Los Angeles County and surrounding areas.
The Los Angeles Public Library collection consists of text materials (newspapers) from the turn of the century through the 1910s. Of particular interest is the complete collection of The Liberator, a rare early twentieth-century Los Angeles news periodical that chronicled issues and events in Los Angeles's African American community.
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 Mariposa Museum and History Center collection contains audiovisual material (movies, audio) and text from the 1850s through the early 2000s. The majority of the collection consists of newspapers and oral histories documenting subjects and topics such as mining, gold country, Yosemite and more.
The Marshall Gold Discovery State Historic Park collection contains text and audiovisual materials (moving images and audio) from the 1940s to 2000s. A majority of the collection consists of filmed, recorded, and written transcipts of oral histories concerning the discovery of gold by James W. Marshall in 1848. Subjects include the California Gold Rush, agriculture, and women's history in 1850.
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 Placentia Library collection contains texts from the 1970s to 1980s. A majority of the collection consists of a newspaper titled, the Placentia News-Times.
The Purpose of the Placentia History Collection is the acquisition, organization, and preservation of both primary and secondary materials relevant to the history of Placentia and its vicinity. As a resource center for the people of Placentia, this collection includes both historical and current information concerning the cultural, geographic, agricultural, economic, social, and political development of the Placentia area.
The Pleasanton's Museum on Main collection contains audiovisual material (moving images and audio) and texts from the 1890s to 2000s. A majority of the collection consists of oral interviews with residents of Pleasanton as well as a local newspaper, the Pleasanton Times.