The Frank Mt. Pleasant Library of Special Collections & Archives Library is the principle repository for the preservation and access of the Leatherby Libraries’ rare and unique collections. Special Collections holds rare books, manuscripts, maps and collections of enduring value while the Archives preserves the history of the university and the Chapman family. The department includes the Dan…

The Downey Historical Society is located at the Downey History Center in Apollo Park. For more than thirty years, the society's all-volunteer staff has been gathering and preserving records and artifacts from and about the southeastern part of Los Angeles County. The society's collection includes original photographs from 1870 to the present (copy negatives, duplicate prints, or 35-mm slides are…

The collection of the Duarte Historical Society and Friends of the Library focuses on the history of the City of Duarte and adjacent Bradbury. Its archive includes photographs, records, and other artifacts related to the settlers and families who developed Duarte, the local schools, and the local citrus industry..