National Museum of Nuclear Science & History
Alfred Simon was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Marshall Rzepinski served in First Ordnance Squadron.
Kistler worked in the 200 West Area at Hanford during the Manhattan Project.
Karl Walther was a glassblower for Columbia University and Brookhaven National Laboratory. During the Manhattan Project, Walther worked as a senior glassblower at the Nash Garage Building at Columbia, where scientists developed the gaseous diffusion process.
Iola Brown worked for the Tennessee Eastman Corporation at the Y-12 Plant.