National Museum of Nuclear Science & History
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Irvine McKey served in the 603rd Air Engineering Squadron.
William Bunnell served at Los Alamos after the war from 1946 to 1948. He was a security guard and a member of the Military Police located at Los Alamos.
W. C. Carnell worked for the Tennessee Eastman Corporation at the Y-12 Plant.