National Museum of Nuclear Science & History
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.
Harvey worked at the 200 West Area at Hanford during the Manhattan Project
Holt worked for Stone and Webster Engineering Corporation.
Springer worked at the 200 West Area at Hanford during the Manhattan Project.
