National Museum of Nuclear Science & History
Madsen worked in the 100 D Area at Hanford during the Manhattan Project.
Roald Wangsness was a staff worker at Los Alamos during the Manhattan Project.
Leroy Jackson was transferred into the Manhattan District, the branch of the United States Army Corps of Engineers tasked with overseeing the construction of critical Manhattan Project sites, shortly after its formation in 1942.
Darol Froman (1906-1997) was an American-born, Canadian physicist. In 1939, Darol Froman studied waveguides and radar as part of a McGill group dedicated to helping the Canadian war effort.
