Capps, Stephen R. (1881-1949) United States of America. Geological Survey.
Mertie, John Beaver (1888-1980) United States of America. Geological Survey.
Moffit, Fred H. (1874-1958?) United States of America. Geological Survey.
Callaghan, Eugene (1904-1990) United States of America. Geological Survey.
Reed, John C. (1905-1993) United States of America. Geological Survey.
Moffit, Fred H. (1874-1958?) United States of America. Geological Survey.
Bass, N. Wood (1893-1979) Dillard, W. Reese Hengst, Jess H. United States of America. Geological Survey.