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Shaw, E. W. (Eugene Wesley), 1881-1935. (Geological Survey (United States), 1921)

Darton, Nelson Horatio, 1865-1948. (Geological Survey (United States), 1920)

Purdue, A. H. (Albert Homer), 1861-1917. (Geological Survey (United States), 1923)

Stose, George Willis, 1869-1960.; Bascom, F. (Florence), 1862-1945. (Geological Survey (United States), 1929)

Bascom, F. (Florence), 1862-1945.; Miller, Benjamin L. (Benjamin LeRoy), 1874-1944. (Geological Survey (United States), 1920)

Diller, J. S. (Joseph Silas), b. 1850.; Kay, George F. 1873-1943. (Geological Survey (United States), 1924)

Darton, Nelson Horatio, 1865-1948. (Geological Survey (United States), 1925)

Butts, Charles, 1863-1946. (Geological Survey (United States), 1927)

Ransome, F. L. (Frederick Leslie), 1868-1935. (Geological Survey (United States), 1923)

Shaw, E. W. (Eugene Wesley), 1881-1935. (Geological Survey (United States), 1923)