National Museum of Nuclear Science & History
A. H. Caldwell worked for the G.G. Ray Company.
James P. Tilley served in the 393rd Bombardment Squadron.
Robert JS Brown was a member of the Special Engineer Detachment at Los Alamos. He worked under Don Hornig on the electrical aspects of detonation for the plutonium bomb.
M. O. Swanson worked for the United States Engineer District Office.
