National Museum of Nuclear Science & History
Walker worked at the 100-F Area at Hanford during the Manhattan Project.
James F. Schumar was a metallurgist. In 1940, he became Chief Metallurgist at Wolverine Tube Company.
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.
