Names
- Aga-Oglu, Mehmet, 1896-1949.1
- Agassiz1
- Agassiz, Alexander, 1835-1910.1
- Agassiz, Louis, 1807-1873.1
- Aigler, Ralph William, 1885-1964.1
- Aiton, Arthur S. (Arthur Scott), 1894-1955.1
- Albeladejo, José M.1
- Allen, John Robins, 1869-1920.1
- Allen, Shirley Walter, 1883-1
- Alt, Glenn Leslie.1
- Altshuler, Samuel Simon, 1902-1
- Amenia Seminary1
- Anderson, Henry Clay, 1872-1939.1
- Andrews, Edmund, 1824-1904.1
- Angell, Alexis C. (Alexis Caswell), 1857-1932.1
- Angell, Robert Cooley, 1899-1
- Angell, Sarah Caswell, 1831-1903.1
- Anning, Norman Herbert.1
- Arndt, Hugo Rudolph.1
- Arneill, James Rae, b. 1869.1