Marlborough School is the oldest independent girls' school in southern California. Founded in 1889 in Pasadena by Mary S. Caswell, the School was located near U.S.C. (University Park, Chester Place) from 1890 to 1916 when it moved to its present location in Hancock Park. Created in 2001, the Archives fulfills its ambassadorial role by collecting, preserving and exhibiting historic items and…

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.

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 Baseball Reliquary maintains a large collection of artifacts, artworks, photographs, and documents related to baseball history in Southern California and the United States.

The collection consists of records and artifacts pertaining to the history of The Jonathan Club, a social club founded in Los Angeles in 1896 and currently serving 4,000 members. Included are thousands of photographs of members and member events, a full run of the Jonathan Magazine (1931-present), some early rosters and registers of Club activities, and realia from various club headquarters and…

The Topanga Historical Society (THS) was organized in 1974 by a group of dedicated community leaders who recognized the urgent need to collect and preserve records of Topanga’s unique history and to make them available to future generations. The Society maintains an Archive Center and presents quarterly local history programs.