National Museum of Nuclear Science & History
N. C. Parrish worked for the United States Engineer District Office.
Hans von Halban (1908-1964) was an Austrian born French physicist. He finished his studies in 1934. He joined nuclear physicist Niels Bohr in Copenhagen, where he and Otto Frisch discovered that heavy water had very little neutron absorption compared to normal water.
John W. Burr was a research assistant in the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.
During WWII, Atilio “Tee” Topazio was a member of the Special Engineer Detachment (SED) assigned to the K-25 Gaseous Diffusion Plant at Oak Ridge, TN.