National Museum of Nuclear Science & History
Hoover worked at the 300 Area at Hanford during the Manhattan Project.
Richard Ehrlich worked at Los Alamos in the Theoretical Physics Division, during the Manhattan Project.
William J. Collinson served as a 1st lieutenant in the 393rd Bombardment Squadron. He was the navigator regularly assigned to the B-29 Some Punkins.
Arthur Levy was a member of the Special Engineering Detachment responsible for developing high explosive casting procedures for the Fat Man plutonium bomb at S-Site at Los Alamos.
