National Museum of Nuclear Science & History
John Mihalkanin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
William S. Johnston was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Sam Adams worked for the Tennessee Eastman Corporation at the Y-12 Plant.
A. A. Carswell worked for the Roane-Anderson Company.