Woodring, Wendell Phillips (1891-1983) Roundy, Paul Vere (1884-1937) Farnsworth, H. R. United States of America. Geological Survey.
Bowen, Charles F. (1871-1953) Roundy, Paul Vere (1884-1937) Ross, Clarence Samuel (1880-1975) Reeves, Frank (1886-1986) United States of America. Geological Survey.