- Agricola, Georgius (1494-1555) (3)
- Alvarez, Walter (1940-) (3)
- Bascom, Florence (1862-1945) (2)
- Bowen, Norman L. (1887-1956)
 - Promoted the solution of petrological field problems by the application of principles deduced from simple phase diagrams of the end members of common rock-forming minerals. - Chamberlin, Thomas Chrowder (1843-1928) (2)
- Davis, William M. (1850-1934)@
- Dawson, Sir John William (1820-1899) (2)
- Drake, Edwin Laurentine (1819-1880) (3)
- Ewing, William Maurice (1906-1974)
- Geophysicist and oceanographer, who led more than fifty expeditions to explore ocean bases.
- Gilbert, G. Karl (1843-1918)
- Structural geologist and surveyor of the American West.
- Hess, Harry Hammond (1906-1969) (4)
- Hutton, James (1726-1797) (2)
- Lyell, Charles (1797-1875) (1)
- Murchison, Roderick Impey (1792-1871) (2)
- Sedgwick, Adam (1785-1873) (2)
- Stensen, Niels (1638-1686) (3)
- Walcott, Charles D. (1850-1927)
- Found the Middle Cambrian Burgess Shale and its incredible biota.
- Wegener, Alfred (1880-1930)@
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