Abbe, Cleveland (1838–1916)
Adams, Leason Heberling (1887–1969)
Adler, Stephen L(ouis) (1939– )
Ames, Adelbert (1880–1955)
Arnold, John (1736–1799)
Atanasoff, John Vincent (1903–1995)
Avicenna (980–1037)
Babcock, Stephen Moulton (1843–1931)
Bachelard, Gaston (1884–1962)
Bacon, Francis (1561–1626)