Bowen, Charles F. (1871-1953) Bowen, C. F. (1871-1953) Roundy, P. V. (1884-1937) Roundy, Paul Vere (1884-1937) Ross, C. S. (1880-1975) Ross, Clarence S. (1880-1975) Ross, Clarence Samuel (1880-1975) Reeves, Frank (1886-1986) Stany Zjednoczone. Geological Survey