National Museum of Nuclear Science & History
J. B. McCullough served in the 509th Headquarters and Base Services Squadron.
Arthur R. Hanson served in the 320th Troop Carrier Squadron.
Harold Hasenfus was part of the Special Engineer Detachment during the Manhattan Project and worked at the University of Chicago's Metalurgical Laboratory and at the gaseous diffusion plant in Oak Ridge.
Valda B. Lemke was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
