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Author
- Arndt, Harold H.3
- Haley, Boyd Raymond, 1922-2
- Zen, E-an, 1928-2
- Gard, Leonard Leade, 1923-1
- Geo. A. Ogle & Co., cartographer, publisher1
- Geological Survey (U.S.), cartographer1
- Geological Survey of Pennsylvania1
- Lane, Ed (Edward), 1935-1
- Ratcliffe, Nicholas M. (Nicholas Morley), 1938-1
- Rothrock, Howard Eugene, 1893-1
- United States. Bureau of Land Management, cartographer1
- Waldron, Howard H. (Howard Hamilton), 1917-1
