National Museum of Nuclear Science & History
McCampbell worked for Stone and Webster Engineering Corporation.
Harold Hasenfus was part of the Special Engineer Detachment during the Manhattan Project and worked at the University of Chicago's Metalurgical Laboratory and at the gaseous diffusion plant in Oak Ridge.
W. H. Rohrer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. Maddox worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
