- Thornbury Township Historic Resource Inventory - Includes the following:
- History of the Township
- Methodology
- Historic Resource Map
- Master List of Historic Resources
- View the National Register paperwork submitted for this project, including the 2005 Registration form and a complete description of the Thornton Village Historic District, its history and its major historic resources.
- Information required by the Historical Commission to determine Historic Resource Impact Study Feasibility
- Thornbury Historical Society
- Historic Valley Forge Information
- Chester County Historical Society
- Colonial Pennsylvania Plantation
- Delaware County History
- Friends of the MOH Grove
- Freedoms Foundation
- Rachel Kohl Library
- Delaware County Historical Society/Passport to History Program
- PA Veterans Museum, Media
- Sanderson Museum