The Nether Providence Historical Society was founded in 1987 with a mission to research and preserve the history of Nether Providence Township, Delaware County, Pennsylvania, and present that history to the community. Based in the 1785 Thomas Leiper House, the Society holds 10 linear feet of archival materials dating from 1825 to the present relating to township residents, events, buildings, and organizations. Included are newspaper clippings, pamphlets and other printed materials, family genealogies, photographs, maps and blueprints, deeds and certificates, diaries, ledgers, and other materials. The Society is also the repository of the records of the Nether Providence Council of Republican Women.