National Museum of Nuclear Science & History
Thomas S. Grennan served as a 2nd lieutenant in the 393rd Bombardment Squadron.
Paul W. Levy was an American physicist. After receiving his undergraduate degree from the University of Chicago in 1943, Levy joined the Manhattan Project at the University’s Metallurgical Laboratory.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.
