National Museum of Nuclear Science & History
W. H. Seaman worked for the United States Engineer District Office.
D.C. Stewart was a Staff Sergeant in the Special Engineer Detachment at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Harold R. Olson served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Enola Gay.
Calkins worked at the 200 West Area at Hanford during the Manhattan Project.