National Museum of Nuclear Science & History
R. M. Van Petten worked for the Kellex Corporation at the K-25 Plant.
Burghardt worked in the United States Engineer District Office.
John Ryan was a staff worker at Los Alamos during the Manhattan Project.
Robert M. Haider served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Bockscar.