National Museum of Nuclear Science & History
Jake Seligman was a staff worker at Los Alamos during the Manhattan Project.
Robert Helton worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Robert Reynolds was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Cleo E. Harter served as a sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Strange Cargo.