National Museum of Nuclear Science & History
T. O. Dean worked at the 200 East Area at Hanford during the Manhattan Project.
Marie Sperling was a staff worker at Los Alamos 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.
F. A. Lehmann worked for the Tennessee Eastman Corporation at the Y-12 Plant.
James C. Hobbs was an American inventor and engineer who created a key part of the valves used in the K-25 gaseous diffusion plant in Oak Ridge, TN.
