National Museum of Nuclear Science & History
Christianson worked at the 100-F Area at Hanford during the Manhattan Project.
Joseph Iorio served in the 1st Ordnance Squadron.
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.