National Museum of Nuclear Science & History
H. F. Koch worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Roger Hildebrand is an American physicist and Manhattan Project veteran. He is the S.K. Allison Distinguished Service Professor, Emeritus, at the University of Chicago and is affiliated with the Enrico Fermi Institute.
Paul Laulotta was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.