National Museum of Nuclear Science & History
Manning worked for Stone and Webster Engineering Corporation.
Norman S. Hintz served in the 603rd Air Engineering Squadron.
P. N. Smith worked for the H. K. Ferguson Company.
Helen Thomson was a techinician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Colonel Austin Wortham “Cy” Betts worked under General Kenneth D. Nichols during the Manhattan Project.
