National Museum of Nuclear Science & History
Before the war Oswald Greager was a high-ranking DuPont chemist. He took leave from DuPont in 1942 to join the Army's Chemical Warfare Service.
William “Willy” Higinbotham (1910-1994) was an American physicist. During the war, Higinbotham worked at Los Alamos as leader of the Electronics Group in the Weapon Physics Division.
Leola Reitz was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
C. E. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
