National Museum of Nuclear Science & History
C. J. Carrol worked for the Poe Piping & Heating Company.
Arnold Grubbe (1904-2002) was an engineer working for the civilian contractor Crane Company in Oak Ridge, Tennessee.
Ralph Gust worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John DoLong was a guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.