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. 

Mount Saint Mary's University was founded by the Sisters of St. Joseph of Carondelet in 1925 as the first Catholic women's college west of the Mississippi. It comprises two historic sites, the Chalon Campus high above Brentwood (1930), and the Doheny Campus, which occupies the former estate of Edward and Estelle Doheny, including the Doheny Mansion at 8 Chester Place (1899).

The archives and collections of the Rancho Los Alamitos Foundation are site-specific and relate to the history of the locale. In the archives are approximately three thousand photographs, two hundred maps and drawings, various account books and business records, oral interviews, and films. Primarily the archival holdings document the running of a large ranching enterprise by the Bixby family…