National Museum of Nuclear Science & History
Leo Safranski was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Jas Hoff worked for the United States Engineer District Office.
E. H. Boon worked for the Tennessee Eastman Corporation at the Y-12 Plant.
H. M. Kolodkin worked for the Roane-Anderson Company.
D. H. Eckles worked for Clinton Laboratories at the X-10 Reactor.