Heald, Kenneth Conrad (1888-1971) Thom, William Taylor (1891-1979) Stany Zjednoczone. Geological Survey
Hall, George Martin (1891-1941) Thom, William Taylor (1891-1979) Wegemann, Carroll Harvey (1879-?) Moulton, Gail Francis (1898-1974) United States of America. Geological Survey.
Dobbin, Carroll Edward (1892-1967) Barnett, V. H. Thom, William Taylor (1891-1979) Stany Zjednoczone. Geological Survey