National Museum of Nuclear Science & History
C. B. Proudfoot worked for the United States Engineer District Office.
Harry Petcher's flat feet meant he couldn't be drafted, but still had an obligation to work for the war effort.
E. Williams worked for the Roane-Anderson Company.
Charles J. Spiegl was a civilian scientist employed by the Manhattan Project. He was involved in radiation toxicology, studying the effects of radiation on animals at the Trinity Site near Alamogordo, New Mexico.
