National Museum of Nuclear Science & History
Markle worked for Stone and Webster Engineering Corporation.
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.
Harrison worked at the 100-B Area at Hanford during the Manhattan Project.