National Museum of Nuclear Science & History
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.
J. C. Watkins worked for the United States Engineer District Office.
Felix Sandoval was a staff worker at Los Alamos during the Manhattan Project.
