National Museum of Nuclear Science & History
Joseph Leopold worked for the Kellex Corporation at the K-25 Plant.
James Osborn was a member of the Special Engineering Detachment at Los Alamos.
Arthur Levy was a member of the Special Engineering Detachment responsible for developing high explosive casting procedures for the Fat Man plutonium bomb at S-Site at Los Alamos.
Nina Perkins worked for the Roane-Anderson Company.