Charles A. Tardiff

Donald C. Benefiel

Raymond C. Peterson

Herbert E. Kubitschek

Herbert E. Kubitschek (1920-1989) was an American biologist and physicist. He studied under Enrico Fermi at the University of Chicago and was present when Chicago Pile-1, the world’s first self-sustained nuclear chain reaction, went critical on December 2, 1942.

Lawrence O’Rourke

Lawrence S. O’Rourke began working on the Manhattan Project at Columbia University after he was called up from the Army Reserves in 1943.