Pardee, Joseph Thomas (1871-1960) United States of America. Geological Survey.
Pardee, Joseph Thomas (1871-1960) United States of America. Geological Survey.
Harder, Edmund Cecil (1882-?) Johnston, A. W. United States of America. Geological Survey.
Miser, Hugh Dinsmore (1884-1969) United States of America. Geological Survey.
Ashley, George Hall (1866-1951) Hicks, William Brooks (1882-?) Bailey, Reginald K. United States of America. Geological Survey.
Matson, George Charlton (1873-?) United States of America. Geological Survey.
Keith, Arthur (1864-1944) Sterrett, Douglass Bovard (1883-?) United States of America. Geological Survey.
Knopf, Adolph (1882-1966) United States of America. Geological Survey.
Knopf, Adolph (1882-1966) United States of America. Geological Survey.
Hewett, Donnell Foster (1881-?) Katz, Frank James(1883-1930) Stose, George Willis (1869-1960) Miser, Hugh Dinsmore (1884-1969) United States of America. Geological Survey.