The collection at the museum is an assortment of items from the 1800's through the 1900's. There are tools for the home and farm, furniture, household accessories, office equipment, documents, photographs, and all types of clothing. Many items have been contributed by local residents over the years and have a direct connection to the "Upper San Gabriel Valley" and its residents. The Rubel Castle…

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).