National Museum of Nuclear Science & History
N. W. Kemper worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Thomas E. Tuggle served in the 1027th Air Material Squadron.
Norman F. Modine was a research assistant at the University of Chicago Met Lab. He was a signer of the Szilard petition.
Robert J. Valley served as a technical sergeant in the 393rd Bombardment Squadron. He was the tail gunner of the B-29 Full House, which served as a weather reconnaissance plane on the Hiroshima bombing mission, and the backup strike plane on Iwo Jima on the Nagasaki mission.
Ledbetter worked in the 200 East Area at Hanford during the Manhattan Project.
