Longtime Verdugo Hills resident John Steven McGroarty was a playwright, columnist, lawyer, congressman, and poet of California. He lived for many years at Rancho Chupa Rosa, a small hacienda near Tujunga that the City of Los Angeles bought in 1953 and now uses to host culture and craft classes. At the turn of the twentieth century, McGroarty crusaded for the restoration of California's early…

The Metropolitan Water District of Southern California manages a library and archival repository documenting the activities of the organization and resources of interest to the greater history of the Los Angeles region. 

Collection includes materials related southern California tourism, the Mission Revival movement, peace movement (1st half 20th century, citrus industry, and materials related to specific collections,including fine art, statuary, bells, crosses, dolls, aviation, Native American basketry, and Asian arts.

The Mojave Desert Archives preserves the history of transcontinental travel to the Los Angeles region through the Mojave Desert of eastern California. Route 66, National Old Trails Road, the Mojave Wagon Road, the Santa Fe Railway (now BNSF), Union Pacific Railroad, and Interstate highways were and are major transit routes through the desert terminating in the Los Angeles basin.