National Museum of Nuclear Science & History
Hendrickson worked in the United States Engineer District Office.
William S. Johnston was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Clarence H. Mathews was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Lt. Francis O’ Sullivan was the third officer om the job when he arrived December 11, 1942, had served in Vicksburg, Mobile and the Lower Mississippi Valley before he came to Oak Ridge.
