1992
Kelsey, Pat, Hootman, Rick
1929
Koch, Rudolf, 1876-1934.
1908
Wildeman, E. de (Emile), 1866-
1910
Coulter, John Merle, 1851-1928.
1905
Lelong, B. M.
1901
Earle, C. W.
1928
Passe, Crispijn van de, -1670.
1959
1945
Friends of the Land
Clark, Edward G.
1903
Vries, Hugo de, 1848-1935.
1932
Roberts, Thomas S. (Thomas Sadler), 1858-1946.
1988
Rubeck, Olof
1906
Thoreau, Henry David, 1817-1862.