- Geological Survey (U.S.)2
- Nelson, Arthur E. (Arthur Edward), 1922-2
- Pomeroy, John S., 1929-2
- Volckmann, Richard P.2
- Geo. H. Walker & Co.1
- Jahns, Richard H. (Richard Henry), 1915-19831
- Koteff, Carl1
- Shaw, Charles Ernest, 1932-1
- Stone, Byron D.1
- Walsh, Gregory J.1
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