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 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 Riverside Public Library collection contains texts from the 1940s. The majority of the collection consists of newspapers and include subjects and topics such as World War II, Army Bases, the United States military and more.