- Geological Survey of Canada (11)
- Geological Survey (U.S.) (6)
- Winchell, N. H. (Newton Horace), 1839-1914 (4)
- Geological Survey of New Jersey (3)
- Greenough, George Bellas, 1778-1855 (3)
- Leith, C. K. (Charles Kenneth), 1875-1956 (3)
- Leverett, Frank, 1859-1943 (3)
- United States. Bureau of Chemistry and Soils (3)
- Van Hise, Charles Richard, 1857-1918 (3)
- Geological Survey of Alabama (2)
- Lane, Alfred C. (Alfred Church), 1863-1948 (2)
- Lewis, J. Volney (Joseph Volney), 1869-1969 (2)
- Rogers, Henry D. (Henry Darwin), 1808-1866 (2)
- Tennessee. State Geological Survey (2)
- Upham, Warren, 1850-1934 (2)
- Alden, William C. (William Clinton), 1871-1959 (1)
- Allen, R. C (1)
- American Geographical Society of New York (1)
- Bolʹshev, M (1)
- Bownocker, J. A. (John Adams), 1865-1928 (1)