Names
- Waterman, Leroy, 1875-1972.2
- Wenley, R. M. (Robert Mark), 1861-1929.2
- White, Andrew Dickson, 1832-1918.2
- White, Lee A., 1886-2
- Whitney, Allen Sisson, 1857-1944.2
- Ziwet, Alexander, 1853-1928.2
- Abbe, Cleveland, 1838-1916.1
- Abbott, Nathan, 1854-1941.1
- Acheson, Dean, 1893-1971.1
- Adams, Charles C. (Charles Christopher), 1873-1955.1
- Adams, Charles K. (Charles Kendall), 1835-1902.1
- Adams, Edward Larrabee.1
- Adams, Henry Foster, 1882-1973.1
- Aga-Oglu, Mehmet, 1896-1949.1
- Agassiz, Alexander, 1835-1910.1
- Aigler, Ralph William, 1885-1964.1
- Ainsworth, Arthur Sardius, 1862-1
- Aiton, Arthur S. (Arthur Scott), 1894-1955.1
- Aiton, Arthur Scott, 1894-1955.1
- Albeladejo, José M.1