National Museum of Nuclear Science & History
Fred Utzman worked for the Edenfield Electric Company.
F. P. Fink worked for the Watson-Flagg Engineering Company.
Charles Ragan worked for the United States Engineer District Office.
M. H. Bradford worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
