Founded in the 1980s, the mission of the Chichester Historical Society is to preserve and share Chichester's rich history and heritage with the public. The Society focuses on the broader Chichester region of Delaware County, Pennsylvania, encompassing the townships of Upper Chichester and Lower Chichester as well as the boroughs of Marcus Hook and Trainer. The Socety's archival holdings, which consist primarily of secondary-source materials such as newspaper clippings, copies of historical documents and photographs, and pamphlets and ephemera, with a small amount of original and primary-source documents, span approximately 10 linear feet of materials dating from 1880 to the present.