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Willard, Daniel E. (Daniel Everett), b. 1862. (Geological Survey (United States), 1909)

Lindgren, Waldemar, 1860-1939. (Geological Survey (United States), 1896)

Todd, J. E. (James Edward), 1846-1922. (Geological Survey (United States), 1903)

Shaw, E. W. (Eugene Wesley), 1881-1935. (Geological Survey (United States), 1913)

Shattuck, George Burbank, b. 1869. (Geological Survey (United States), 1907)

Lindgren, Waldemar, 1860-1939. (Geological Survey (United States), 1905)

Hayes, C. W. (Charles Willard), 1859-1916. (Geological Survey (United States), 1896)

Van Hise, Charles Richard, 1857-1918. (Geological Survey (United States), 1900)

Jaggar, Jaggar, Thomas Augustus, 1871-1953.; Palache, Charles, b. 1869. (Geological Survey (United States), 1905)

Keith, Arthur. (Geological Survey (United States), 1897)