National Museum of Nuclear Science & History
John Russell worked for the United States Engineer District Office.
Klaus Fuchs (1911-1988) was a German theoretical physicist and spy who worked at Los Alamos during the Manhattan Project and passed atomic secrets to the Soviet Union.
C. L. Stewart worked for the Union Carbide & Carbon Corporation.
Clarence H. Mathews was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
F. A. Wallin worked for the Kellex Corporation at the K-25 Plant.
