National Museum of Nuclear Science & History
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Ruth K. (McNunis) Bansch was a laboratory technician in the Health Division at the University of Chicago Met Lab.
Kenneth Greisen was an American physicist. He worked on the Manhattan Project at Los Alamos. He was the leader of Group X-1A (Photogoraphy with Flash X-Rays) until it was dissolved in May 1945.
Doyle G. Smiley served in the First Ordnance Squadron.