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.
E. H. Marsden worked for the United States Engineer District Office.
Marjorie Hall Bradner was a secretary at Los Alamos during the Manhattan Project. She was also the wife of Los Alamos physicist Hugh Bradner.
Jose Quintana was a staff worker at Los Alamos during the Manhattan Project.