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- United States. Central Intelligence Agency6
- Geological Survey (U.S.)3
- Arkansas Geological Survey1
- Beards, R. J.1
- Burroughs, Dolores1
- Cardwell, Dudley H., cartographer1
- Dixon, G. H. (George Harvey), 1925-1
- Hinkle, Frank1
- Meents, Wayne Franklin1
- Ohio. Division of Geological Survey1
- Pusey, Lewis B.1
- Richardson, G. B.1
- Richardson, G. B. (George Burr), 1872-19491
