National Museum of Nuclear Science & History
E. Berger worked for the Roane-Anderson Company.
A. G. Underwood worked for the J.A. Jones Construction Company.
Walter Treibel was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
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.
John Riddle was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
