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Creator
- Hinton, Isaac Taylor, 1799-18471
- Howell, Reading, 1743-18271
- Le Rouge, Georges-Louis1
- Lee, Thomas Jefferson, 1808-18911
- Lyman, Benjamin Smith, 1835-19201
- Michler, N. (Nathaniel), 1827-18811
- Pennsylvania. Bureau of Topographic and Geologic Survey1
- Pennsylvania. Public Service Commission1
- Pittsburgh (Pa.). Department of City Planning1
- Scull, William, active 1765.1
- Silfvorling, Jonas.1
- Simpkin, Marshall and Co.1
- United States. Department of the Interior1
- W. Faden, 17781