National Museum of Nuclear Science & History
A. C. Smythe worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Stanley Hall (1924 – present) is an American laboratory technician and scientist who worked on the Manhattan Project at Los Alamos, New Mexico.
Roger Sr was a mechanical engineer having graduated from Stanford University during World War II. He and his wife, Katherine Barnes were recruited by the FBI who made contact with them at the Santa Fe training station when they were leaving town, after their honeymoon at Ghost Ranch.