National Museum of Nuclear Science & History
John Brill was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Joseph M. DiJulio served as a sergeant in the 393rd Bombardment Squadron. He was regularly assigned as a radar operator on the Up An’ Atom, but did not fly in that plane during the August 1945 bombing missions on Hiroshima and Nagasaki.
Donald Francis Mastick was an American chemist who worked at Los Alamos and on Tinian as part of Project Alberta.
Thomas Little was a millwright for the civilian contractor Tennessee Eastman Company from 1944 to 1946.