Bass, N. Wood (1893-1979) Kennedy L. E. Dillard, W. Reese Leatherock, Otto Hengst, Jess H. United States of America. Geological Survey.
United States of America. Geological Survey. Wilmarth M. Grace (1866-1949). Editor
Smith, Philip S. (1877-1949) United States of America. Geological Survey.
Richardson, George Burr (1872-1949) United States of America. Geological Survey.
Nickles, John Milton (1859-1945) United States of America. Geological Survey.
Smith, Philip Sidney (1877-1949) United States of America. Geological Survey.
Mertie, John Beaver (1888-1980) United States of America. Geological Survey.
Stewart, B. D. United States of America. Geological Survey.
Callaghan, Eugene (1904-1990) United States of America. Geological Survey.
United States of America. Geological Survey. Ayvazoglou, W. (1871-1956). Editor
Callaghan, Eugene (1904-1990) Buddington, Arthur Francis (1890-1980) United States of America. Geological Survey.
Moffit, Fred H. (1874-1958?) United States of America. Geological Survey.
Bascom, Florence (1862-1945) Stose, George Willis (1869-1960) United States of America. Geological Survey.
Thom, Emma Mertins United States of America. Geological Survey.
Spencer, Arthur Coe (1871-1964) United States of America. Geological Survey.
Emmons, William Harvey (1876-1948) United States of America. Geological Survey.
Lupton, Charles Thomas (1878-1935) United States of America. Geological Survey.
Winchester, Dean Eddy (1883-1936) Hares, Charles Joseph (1881-?) Lloyd Russell E. Parks, E. M. United States of America. Geological Survey.
Capps, Stephen R. (1881-1949) United States of America. Geological Survey.
Shaw, Eugene Wesley (1881-1935) Matson, George Charlton (1873-?) Wegemann, Carroll Harvey (1879-?) United States of America. Geological Survey.
Marshall, Robert Bradford (1867-1949) United States of America. Geological Survey.
Eakin, Henry Miner (1883-1936) United States of America. Geological Survey.
Mertie, J. B. Jr. (1888-1980) United States of America. Geological Survey.
Ross, Clyde P. (1891-1965) United States of America. Geological Survey.