National Museum of Nuclear Science & History
H. B. Marcum worked for the Union Carbide & Carbon 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.
J. R. McIntyre worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Lindgren worked in the 300 Area at Hanford during the Manhattan Project.