National Museum of Nuclear Science & History
J. E. Pearman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Geoghegan worked at the 300 Area at Hanford during the Manhattan Project.
Harris Harold Levee served in the Special Engineering Detachment at the Metallurgical Laboratory at the University of Chicago on 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.
Keeley worked for Stone and Webster Engineering Corporation.
