National Museum of Nuclear Science & History
J. R. Smith worked for the Roane-Anderson Company.
L. C. Hafer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Donald William Kerst is an American physicist known for his development of the betatron in 1940 and the Water Boiler Reactor at Los Alamos during the Manhattan Project.
George W. Campbell was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.