National Museum of Nuclear Science & History
Lt. Col. Thomas John Classen served as a lieutenant colonel in the 393rd Bombardment Squadron. By 1943, Tom was the captain of the 72nd Squadron.
A member of the Special Engineer Detachment of the U.S. Army, Ray Stein participated in the Manhattan Project at Oak Ridge and was assigned to the Y-12 Plant.
Hans Courant (1924- ) is a German-born, American physicist. After only completing one semester at MIT, the army recruited Hans Courant.