National Museum of Nuclear Science & History
H. R. Grady worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Gebhart worked in the 200 East Area at Hanford during the Manhattan Project.
Nelson F. Hagar served in the 393rd Bombardment Squadron.
H. E. Armstrong worked for the Tennessee Eastman Corporation at the Y-12 Plant.
James J. Nickson was a medical doctor and Section Chief of H-III Medical Industrial Hazards and Health Physics in the Health Division at the University of Chicago Met Lab.
