National Museum of Nuclear Science & History
Paul Snodgrass worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Cady worked at Los Alamos during the Manhattan Project.
John Davis worked for the J.A. Jones Construction Company.
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.