National Museum of Nuclear Science & History
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.
Winford D. “Doug” Crossland was a design engineer at the K-25 Plant at Oak Ridge, TN during the Manhattan Project and a member of the Special Engineer Detachment.
Calvin S. Shepherd worked on the Manhattan Project at Los Alamos, NM and the Trinity Site.
