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 Gilb Museum of Arcadia Heritage was opened in 2001 and is named after its lead donors, Ruth and Charles Gilb. The Museum is maintained and operated by the City of Arcadia and houses artifacts and artwork representative of local Arcadia history and culture. The Museum presents seven individual interpretive exhibit spaces with both permanent and temporary exhibits as well as three off-site…