National Museum of Nuclear Science & History
F. D. McIntosh served in the 509th Headquarters and Base Services Squadron.
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.
C. L. Langston worked for the Fercleve Corporation.
Ellis Steinberg was an American Chemist. He was a junior chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
