National Museum of Nuclear Science & History
Dunbar worked in the United States Engineer District Office.
Carl Helrich (1895-1971) was a civil engineer for the J.A. Construction Company from 1943 to 1945 and helped construct the Oak Ridge town site and plant area.
Sergeant James T. Harris was a member of the Special Engineer Detachment stationed at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.