George S. Hammond

George Simms Hammond was an American scientist and theoretical chemist who developed "Hammond's postulate", and fathered organic photochemistry,–the general theory of the geometric structure of the transition state in an organic chemical reaction. Hammond's research is also known for its influence on the philosophy of science. His research garnered him the Norris Award in 1968, the Priestley Medal in 1976, the National Medal of Science in 1994, and the Othmer Gold Medal in 2003. He served as the executive chairman of the Allied Chemical Corporation from 1979 to 1989.

22 May 1921

Born on the same birth day (22 May): Annamacharya • Bodo von Borries • François-Joachim de Pierre de Bernis • Hong Yong-jo • Iva Davies • Joel Obi • John Mackenzie (film director) • Karoline Herfurth • Kenny Ball • Menzies Campbell • Richard Brakenburgh

Born in the same month (May 1921): Alida Valli • Arthur Leonard Schawlow • B. B. Lal • D. V. Paluskar • Daniel Berrigan • Daniel Gélin • Dennis Brain • Edo Murtić • Federico Krutwig • Harry Carey Jr. • Howard Reig • Joseph Beuys • Karel van het Reve • Sandy Douglas • Sugar Ray Robinson • Tom Uren • Wolfgang Borchert