Jones, Edward L. Jr. Stany Zjednoczone. Geological Survey
Darton, Nelson Horatio (1865-1948) Stany Zjednoczone. Geological Survey
Hill, James Madison (1884-?) Stany Zjednoczone. Geological Survey
Ferguson, Henry Gardiner (1882-1966) Stany Zjednoczone. Geological Survey
Lee, Willis Thomas (1864-1926) Stany Zjednoczone. Geological Survey
Sears, Julian Ducker (1891-1970) Stany Zjednoczone. Geological Survey
Lee, Willis Thomas (1864-1926) United States of America. Geological Survey.
Dane, Carle Hamilton (1900-1968) United States of America. Geological Survey.
Lasky, Samuel G. (1901- ) United States of America. Geological Survey.
Spencer, Arthur Coe (1871-1964) Paige, Sidney (1880-1968) United States of America. Geological Survey.
Sears, Julian Ducker (1891-1970) United States of America. Geological Survey.
Hunt, Charles Butler (1906-1997) United States of America. Geological Survey.
Noble, Levi Fatzinger (1882-1965) United States of America. Geological Survey.
Darton, Nelson Horatio (1865-1948) Stany Zjednoczone. Geological Survey
Darton, Nelson Horatio (1865-1948) United States of America. Geological Survey.
Schaller, Waldemar Theodore (1882-1967) Henderson, Edward Porter (1898- ) United States of America. Geological Survey.
Bryan, Kirk (1888-1950) Stany Zjednoczone. Geological Survey
Lasky, Samuel G. (1901- ) United States of America. Geological Survey.
Hoots, Harold William (1899-1979) Stany Zjednoczone. Geological Survey