National Museum of Nuclear Science & History
O’Connell worked in the 200 West Area at Hanford during the Manhattan Project.
George Maronde was a security guard at the University of Chicago Metallurgical Lab. He stood guard outside Stagg Field when Chicago Pile-1 went critical on December 2, 1942.
R. K. Dean worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Kenney worked for Stone and Webster Engineering Corporation.
A. W. Groce worked for the Edenfield Electric Company.