National Museum of Nuclear Science & History
S. T. Cantrill was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Martha Alice Melton worked for the United States Engineer District Office.
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.