National Museum of Nuclear Science & History
Sherman Winters was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Keith W. Ferre served in the 603rd Air Engineering Squadron.
Chalgren worked at the 200 West Area at Hanford during the Manhattan Project.
Kenneth L. Cohn was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.