National Museum of Nuclear Science & History
William Haag was a member of the Special Engineering Detachment at Los Alamos from August 1945 to the end of 1946.
Johnstone worked at the 300 Area at Hanford during the Manhattan Project.
Donald William Kerst is an American physicist known for his development of the betatron in 1940 and the Water Boiler Reactor at Los Alamos during the Manhattan Project.