National Museum of Nuclear Science & History
Marcelline Peltier was a staff worker at Los Alamos during the Manhattan Project.
O'Brien worked for Stone and Webster Engineering Corporation.
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.
Arthur Adamson (1919-2003) was an American chemist. Adamson was born on August 15, 1919 in Shanghai, China to American parents.
John B. Martin served in the 1st Ordnance Squadron.