National Museum of Nuclear Science & History
J. E. Metzger worked for the Comstock-Bryant Electric Company.
William C. Drainer served in the 393rd Bombardment Squadron.
Cummings worked for Stone and Webster Engineering Corporation.
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.
John Morris worked for the United States Engineer District Office.
