The West Caln Township Historical Commission collects archival materials and performs research on the history of West Caln Township in Chester County, Pennsylvania. The Commission's archival holdings include over 10 linear feet of materials dating from the mid-19th century to the present, consisting mostly of secondary-source materials such as newspaper clippings, photocopies, and research notes, with some original documents including school board records, maps, photographs, letters, oral histories, and deeds. The holdings document various West Caln Township individuals, families, organizations, and properties.