National Museum of Nuclear Science & History
WIley Thomas, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Norene Mann was a secretary at the University of Chicago Met Lab. She worked for Nobel laureate James Franck, but often also acted as a secretary for Leo Szilard.
Waldo E. Cohn was an American biochemist who worked in health physics and isotope separation during the Manhattan Project.