National Museum of Nuclear Science & History
Hardie worked in the United States Engineer District Office.
Arnold Grubbe (1904-2002) was an engineer working for the civilian contractor Crane Company in Oak Ridge, Tennessee.
Arthur Julius Olofson joined the Manhattan Project at Los Alamos in June 1944. Olofson developed specialized tools for components of the atomic bomb under Dr.
Glen Stranaham was a staff worker at Los Alamos during the Manhattan Project.