National Museum of Nuclear Science & History
Magdaline Penny worked for the United States Engineer District Office.
Raymond Ledford worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jas Penny, Jr. 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.
