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- Potts, William McCleery b. 1856 1 results
- Reading Iron Co 1 results
- Reading Iron Works (Reading, Pa.) 1 results
- Reasler, Kenneth 1 results
- Reed, Herbert P. 1 results
- Robeson and Paul 1 results
- Robesonia Iron Company, Limited 1 results
- Robesonia Iron Company, Ltd. (Philadelphia) 1 results
- Rutter, Thomas and Samuel Potts 1 results
- Shoemaker, Henry Wharton, 1880- 1 results
- Swank, James Moore 1832-1914 1 results
- Swank, James Moore, 1832-1914 2 results
- Taylor, Frank H. (Frank Hamilton), 1846-1927 1 results
- Thomas Iron Co 1 results
- Thomas Iron Company 1 results
- United States Dept. of the Interior National Park Services 1 results
- United States. Congress 1 results
- United States. Congress House 1 results
- United States. Department of the Interior. Southwestern Pennsylvania Heritage Preservation Commission 1 results
- United States. National Park Service 1 results
- United States. National Park Service. Denver Service Center 1 results
- Unknown author 2 results
- Walker, Joseph E, 1911- 1 results