National Museum of Nuclear Science & History
Fred Hunt, a mechanical engineer who worked in the power department for DuPont during the late 1930s, arrived in Hanford in 1943.
Harold Hoover was a member of the Special Engineer Detachment during the Manhattan Project. He worked as a filter foreman at the Y-12 Plant, but his real job was in counterintelligence, to ensure no sabotage occurred.
Leon Leventhal was a nuclear chemist and radiation expert who worked at Oak Ridge, the University of Chicago’s Met Lab, and Los Alamos Laboratory during the Manhattan Project.
Major Harry D. Riley (1907-1996) worked on the Manhattan Project at Hanford as an engineering officer and chief of services.