National Museum of Nuclear Science & History
John McKim worked for the Kellex Corporation at the K-25 Plant.
Robert E. Smithson served as a master sergeant in the the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Strange Cargo.
Harry Reason was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.
J. J. Murphy worked for the Union Carbide & Carbon Corporation.
