National Museum of Nuclear Science & History
Gay Lingley worked for the United States Engineer District Office.
Stanley Bloom worked for the Roane-Anderson Company.
T. F. Walsh worked for the United States Engineer District Office.
Ruth A. Casler was a lab technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Minnie (Heller) Steinberg was a junior biologist in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.