National Museum of Nuclear Science & History
Engel worked in the United States Engineer District Office.
William O’Brien worked for the United States Engineer District Office.
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.
Smith worked at the 200 Area at Hanford during the Manhattan Project.
Nora Dene Lawson worked as a calutron operator at the Y-12 Separations Plant in Oak Ridge, TN during the Manhattan Project.
