National Museum of Nuclear Science & History
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.
Peggy Eileen (Johnson) Titterton was a laboratory assistant at Los Alamos and the wife of physicist Ernest Titterton.
