National Museum of Nuclear Science & History
William Crum was born on September 4, 1925, in Hancock County, IL. He was the seventh of eight siblings who grew up on a farm in Western Illinois near the Mississippi River.
C. W. Barrett worked for the Roane-Anderson 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.
