books.google.comhttp://books.google.com/books/about/The_frontier_forts_of_western_Pennsylvan.html?id=5kUVAAAAYAAJ&utm_source=gb-gplus-shareThe frontier forts of western Pennsylvania
By Commission to Locate the Site of the Frontier Forts of Pennsylvania, Henry Melchior Muhlenberg Richards, John M. Buckalew, Sheldon Reynolds, George Dallas Albert, Jay Gilfillan Weiser
