Schrader, Frank C. (1860-1944) Schrader, Frank Charles (1860-1944) Stany Zjednoczone. Geological Survey
Bastin, Edson Sunderland (1878-1953) Stany Zjednoczone. Geological Survey
Bastin, Edson Sunderland (1878-1953) Stany Zjednoczone. Geological Survey
Ross, Clyde Polhemus (1891-1965) Stany Zjednoczone. Geological Survey
Ross, Clyde Polhemus (1891-1965) Stany Zjednoczone. Geological Survey
Lindgren, Waldemar (1860-1939) Heikes, Victor Conrad (1867-1948) Stany Zjednoczone. Geological Survey
Ransome, Frederick Leslie (1868-1935) Stany Zjednoczone. Geological Survey
Jones, Edward L. United States of America. Geological Survey.
Longwell, Chester Ray (1887-1975) Stany Zjednoczone. Geological Survey
Noble, Levi Fatzinger (1882-1965) United States of America. Geological Survey.
Burchard, Ernest F. (1875-1961) United States of America. Geological Survey.
Ransome, Frederick Leslie (1868-1935) United States of America. Geological Survey.
Jones, Edward L. United States of America. Geological Survey.