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National Museum of Nuclear Science & History

Lt. Francis O’Sullivan

Oak Ridge, TN

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.

Oak Ridge Journal from January 4th, 1945. Col. Kenneth D. Nichols, District Engineer, received official commendation and praise for the “faithful performance of duty” and awarded citations in recognition for the completion of “faithful and satisfactory service rendered to the War Department and to the Nation.”

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Austin E. Johnston

Oak Ridge, TN

Austin Johnston worked for the United States Engineer District Office.

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D. H. Riley

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Ray Smith

Trinity Site

Ray Smith is the historian at the Y-12 National Security Complex. His specific focus is the history of Oak Ridge, and he is intimately acquainted with the uranium enrichment processes undertaken at the Y-12, K-25, and S-50 plants during the Manhattan Project, and how the Fat Man and Little Boy bombs worked.