National Museum of Nuclear Science & History
H. A. Pritchard worked for the J.A. Jones Construction Company.
Carl C. Mason 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 Up An’ Atom.
William MacLeod worked for the United States Engineer District Office.
Ralph A. James (1920-1973) was a research associate in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
