National Museum of Nuclear Science & History
J. E. Mason worked for the Roane-Anderson Company.
James H. Payne served in the 1st Ordnance Squadron.
Neil Bergen was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Walter R. Julek was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. D. Cantrell worked for the Tennessee Eastman Corporation at the Y-12 Plant.