National Museum of Nuclear Science & History
G. L. Crutchfield worked for the Edenfield Electric Company.
Henry Faul was a geologist working on Enrico Fermi's team at the University of Chicago. He was responsible for prospecting uranium ore in Colorado and Utah.
Joseph Pappalardo was a staff worker at Los Alamos during the Manhattan Project.
Robert B. Rigler served in the First Ordnance Squadron.