Materials about the history of Eagle Rock.  Our historical society objectives are: To preserve, clarify through research and to perpetuate the history of Eagle Rock Valley To make this history available to students, researchers, libraries and all interested persons To preserve and protect our local landmarks, especially the Eagle Rock

Documents and photos relating to the history of the Crescenta Valley. The La Crescenta Valley Historical Society has a lot of materials on the New Years Flood of 1934, and the town of Montrose, plus some materials on the American portrait artist S. Seymour Thomas.

The Library has a large collection of manuscripts, printed books and periodicals, photographs, maps and ephemera relating to Los Angeles.