National Museum of Nuclear Science & History
Herbert Etzler worked for the Roane-Anderson Company.
Bruno Yurgaites was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Ruby Kidd worked for the Kellex Corporation at the K-25 Plant.
Herbert M. Lehr was a member of the Special Engineer Detachment who worked at Los Alamos during the Manhattan Project.