National Museum of Nuclear Science & History
Julia Mangan worked for the A. S. Schulman Electric Company.
Leroy Hartmann (1922 – 1944) was an electrical engineer in the Special Engineer Detachment Manhattan District CE in Oak Ridge.
Major Harry D. Riley (1907-1996) worked on the Manhattan Project at Hanford as an engineering officer and chief of services.
Petty worked in the 100 B and D Areas at Hanford during the Manhattan Project.
