Ralph Moorehead

David Greenglass

David Greenglass (1922-2014) was a machinist and member of the Special Engineer Detachment who engaged in espionage activities for the Soviet Union at Los Alamos during the Manhattan Project.

R. I. Condit

R. I. Condit worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Frank D. Mason

Frank Mason worked for the United States Engineer District Office.

Orin McClure