National Museum of Nuclear Science & History
F. J. Underwood worked for the Roane-Anderson Company.
Leo House worked for the Roane-Anderson Company.
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.
Sir James Chadwick (1891-1974) was an English physicist and winner of the 1935 Nobel Prize in Physics.