Author
- Carl Schurz Memorial Foundation 1 results
- Gibson, Deirdre 1 results
- Independence National Historical Park (Philadelphia, Pa.) 1 results
- Leopold-Sharp, Lynne A. 1 results
- Lingelbach, William E. (William Ezra), 1871-1962 1 results
- Milley, John C. 1 results
- Pennypacker, Samuel W. (Samuel Whitaker), 1843-1916 1 results
- Peterson, Charles E. (Charles Emil), 1906-2004 1 results
- Riley, Edward M. 1 results
- U.S Philadelphia National Shrines Park Commission 1 results
- United States. National Park Service 6 results
- United States. National Park Service. Denver Service Center 1 results