National Museum of Nuclear Science & History
William Gray worked for the Roane-Anderson Company.
Swan Swanson was a staff worker at Los Alamos during the Manhattan Project.
Mortimer Schwartz served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Ruth Hoffberg was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
C. Varuzzo worked for the United States Engineer District Office.
