Author
Geological Survey (U.S.),
19
Brooks, Alfred H. 1871-1924,
3
Mendenhall, Walter C. 1871-1957,
3
Capps, Stephen R. 1881-1949,
2
Hollick, Charles Arthur, 1857-1933,
2
Schrader, Frank C. 1860-1944,
2
Smith, Philip S. 1877-1949,
2
Tarr, Ralph S. 1864-1912,
2
United States. Bureau of Land Management. Eastern Interior Field Office,
2
Abbe, Cleveland, Jr., 1872-1934,
1
Butler, B. S. 1877-1960,
1
Chapin, Theodore, 1876-
1
Dall, William Healey, 1845-1927,
1
Goode, Richard Urquhart, 1858-1903,
1
Leffingwell, Ernest de K. 1875-1971,
1
Martin, G. C. 1875-1943,
1
Martin, Lawrence, 1880-1955,
1
Peters, W. J. 1863-1942,
1
Prindle, L. M. 1865-1956,
1
Smith, Walter R.,
1
Wright, Charles Will, 1879-
1