National Museum of Nuclear Science & History
Allen worked at the 200 West Area at Hanford during the Manhattan Project.
Johnston worked at the 300 Area at Hanford during the Manhattan Project.
John Weil was a member of the Special Engineer Detachment serving at Los Alamos from early 1943 through the end of the war.
W. C. Young worked for the Roane-Anderson Company.
Lieutenant General Leslie Groves (1896-1970) was a United States Army Corps of Engineers officer and director of the Manhattan Project.
