"Provides a searchable database for landmarks, properties, and sites throughout Pennsylvania that are listed in the National Register of Historic Places and other archaeological and historic sites stored in the files of the Pennsylvania Historical and Museum Commission."
Delaware County Archives
Makes County records available through online indexes and provides information on doing research at the Archives.
Historian Keith Lockhart’s Website
Offers information for historical research by municipality: tax and census records, historical maps, and photos.
National Trust for Historic Preservation
Provides national leadership, education, and advocacy to save America’s diverse historic places and revitalize our communities.
Pennsylvania Historical and Museum Commission
Administers all aspects of the Commonwealth’s history, from maintaining collections, advocating and assisting in preservation, to providing interpretation for its many historical sites.
Preservation Pennsylvania
Assists PA communities protect and utilize historic resources through education and advisory assistance.