Hancock, Eugene Thomas (1875-?) Stany Zjednoczone. Geological Survey
Pardee, J. T. (1871-1960) Pardee, Joseph Thomas (1871-1960) Stany Zjednoczone. Geological Survey
Hancock, Eugene Thomas (1875-?) Stany Zjednoczone. Geological Survey
Bowen, Charles F. (1871-1953) Stany Zjednoczone. Geological Survey
Stebinger, Eugene (1883-1951) Stany Zjednoczone. Geological Survey
Pardee, Joseph Thomas (1871-1960) Stany Zjednoczone. Geological Survey
Richards, Ralph Webster (1879-?) Stany Zjednoczone. Geological Survey
Heald, Kenneth Conrad (1888-1971) Stany Zjednoczone. Geological Survey
Reeves, Frank (1886-1986) Stany Zjednoczone. Geological Survey
Rogers, Gaillard Sherburne (1889-1919) Lee, Wallace (1883-1972) Stany Zjednoczone. Geological Survey
Lovering, Thomas Seward (1896-1991) Stany Zjednoczone. Geological Survey
Baker, Arthur Alan (1897-1996) Stany Zjednoczone. Geological Survey
Reeves, Frank (1886-1986) Stany Zjednoczone. Geological Survey
Dobbin, Carroll Edward (1892-1967) Stany Zjednoczone. Geological Survey
Reeves, Frank (1886-1986) Stany Zjednoczone. Geological Survey
Collier, Arthur James (1866-1939) Stany Zjednoczone. Geological Survey
Pardee, Joseph Thomas (1871-1960) Larsen, Esper Signius (1879-1961) Stany Zjednoczone. Geological Survey
Parker, Frank Stephen (1905-1984) United States of America. Geological Survey.
Pardee, Joseph Thomas (1871-1960) United States of America. Geological Survey.
Bauer, Clyde Max (1886-1963) Stany Zjednoczone. Geological Survey
Condit, Daniel Dale (1886-?) Finch, E. H. Pardee, Joseph Thomas (1871-1960) Stany Zjednoczone. Geological Survey
Stebinger, Eugene (1883-1951) United States of America. Geological Survey.
Pierce, William Gamewell (1904-1994) Hunt, Charles Butler (1906-1997) United States of America. Geological Survey.
Renick, Brink Coleman (1897- ) Riffenburg, Harry Buchholz (1891- ) United States of America. Geological Survey.