George David Birkhoff
…Industrial and Applied Mathematics in his honor. Birkhoff married Margaret Elizabeth Graftus in 1908. They had three children, Barbara, mathematician Garrett Birkhoff (1911–1996) and Rodney. Birkhoff, George David (1912). "A determinant formula for the number of ways of coloring a map". Ann. Math. 14 (1/4): 42–46…