National Museum of Nuclear Science & History
F. A. Thomas worked for the Edenfield Electric Company.
Holl worked for Stone and Webster Engineering Corporation.
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.
August Balestri was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
