National Museum of Nuclear Science & History
Paul Petretzky worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Walter Morris worked for the Oak Ridge Recreation and Welfare Association.
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.
