National Museum of Nuclear Science & History
Marie Sperling was a staff worker at Los Alamos during the Manhattan Project.
Butts worked for Stone and Webster Engineering Corporation.
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.
John B. Kennedy served as a sergeant in the 393rd Bombardment Squadron.
