The Orange County Historical Society (OCHS) is a non-profit group which collects, preserves and shares the history of Orange County, California for the benefit of its members and the general public.

Images of Los Angeles and its communities are preserved in the collections of the California Museum of Photography. In the immense archive of vintage stereographic negatives and prints known as the Keystone-Mast Collection are views taken between 1885 and 1960 of places, people, landmarks, industries, agriculture, and historical events in the Los Angeles region. The University Print Collection…