National Museum of Nuclear Science & History
G. E. McAllister worked for the United States Engineer District Office.
Matthew Sands (1919-2014) was an American physicist. In 1943, Matthew Sands began working for the Naval Ordnance Laboratory and developed two types of influence mines before being disillusioned by the bureaucracy of the navy.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.