National Museum of Nuclear Science & History
Stanley A. Kiedrowski served as a sergeant in the 393rd Bombardment Squadron.
Joseph LaRocco was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
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.
