National Museum of Nuclear Science & History
Laura A. Marshall was a laboratory technician in the Health Division at the University of Chicago Met Lab.
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.
Watt worked at the 200 West Area at Hanford during the Manhattan Project.
H. H. Maples worked for the Roane-Anderson Company.