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- Geological Survey (U.S.)921
- Kentucky Geological Survey790
- Jillson, Willard Rouse, 1890-197565
- Lewis, Richard Quintin, 1919-34
- Kentucky Geological Survey, issuing body29
- Moore, Samuel L.29
- Peterson, Warren Lee, 1925-24
- Kepferle, Roy Clark, 1926-22
- Rice, Charles L.22
- Weir, Gordon W. (Gordon Whitney), 1922-201122
- Johnson, William D., Jr21
- Outerbridge, William F.21
- Swadley, W. C.20
- Taylor, Alfred R.20
- Luft, Stanley Jeremie, 1927-19
- Smith, Avery E.19
- Moore, Frank B. (Frank Baker), 1912-17
- Amos, Dewey Harold, 1925-16
- Cressman, Earle Rupert, 1923-16
- Englund, Kenneth John, 1923-16