Václav Hlavatý was a Czech-American mathematician who wrote on the theory of relativity and on unified field theory. He was born January 27, 1894, Louny, Czechoslovakia, son of Vaclav and Laura (Feltlova). He completed his Ph.D. in mathematics at Charles University, Prague (1922) and his post doctoral studies at universities in Holland, Rome, Paris and Oxford. Hlavatý was professor of mathematics at Charles University from 1930-1948 and visiting professor at Princeton University at the invitation of Albert Einstein, 1937-1938. A member of the Czech Socialist Party, Hlavatý entered politics around the year 1946, eventually becoming a member of the Czech parliament in 1947. He refused to sign Communist loyalty oath and left Czechoslovakia after the Communist coup in 1948. In the fall of 1948, he accepted a professorship of mathematics at Indiana University. A noted mathematician, Hlavatý was a member of the Prague Academy of Sciences, the Royal Society of Sciences in Prague, the Bucharest Institute of Sciences, the Societe Royale de Liege, and the International Academy of Sciences in Paris; and founder with Jaroslav Nemec of the Czechoslovak Society of Arts and Sciences, a nonpolitical cultural organization. He corresponded with Albert Einstein and worked on a mathematical description of Einstein's unified field theory. He died in Bloomington, Indiana on January 11, 1969.