National Museum of Nuclear Science & History
L. L. Lee worked for the United States Engineer District Office.
Urban worked at the 200 West Area at Hanford during the Manhattan Project.
John H. Keyser served in the 393rd Bombardment 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.