National Museum of Nuclear Science & History
P. F. Grieger worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Gilbert Mathis was an electrical engineer at Los Alamos from 1943 to 1946. He was recruited for the Manhattan Project as a member of the US Army Signal Corps.
Edward Smith was a chemical engineer employed by the civilian contractor Eastman Kodak at the K-25 Plant in Oak Ridge, Tennessee.
