National Museum of Nuclear Science & History
R. J. Guthrie worked for the Watson-Flagg Engineering Company.
Harry Stephon was a gruard and sergeant in the U.S. Army at the Metallurgical Laboratory in Chicago during the Manhattan Project.
George T. Felbeck was a Manhattan Project veteran and engineer, who held the position of Manager of Operations at Oak Ridge for Union Carbide.
McMahon worked in the 100 D Area at Hanford during the Manhattan Project.
Leonard Lindey was a member of the Miltary Police assigned to Oak Ridge, Tennessee. He worked primarily in perimeter security, checking on all personnel coming in and out of the complex.