- Fritts, Crawford E. (Crawford Ellsworth), 1927-4
- Geological Survey (U.S.)3
- Simpson, Howard E.2
- Gates, Robert Maynard, 1918-1
- H. & C.T. Smith (Firm), issuing body1
- Hanshaw, Penelope M.1
- La Sala, A. M. (Albert M.), 1931-1
- Pessl, Fred1
- Searl, S. W., cartographer1
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