National Museum of Nuclear Science & History
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.
Nelson worked at the 300 Area at Hanford during the Manhattan Project.
John Fox is a mechanical engineer who worked for the Pacific Northwest National Laboratory and Battelle Memorial Institute.
Blauvelt worked in the United States Engineer District Office.
