National Museum of Nuclear Science & History
James E. Grady served in the 1st Ordnance Squadron.
Herbert G. “Mac” MacPherson (1911-1993) was an American nuclear engineer. MacPherson’s expertise on graphite made him a valuable consultant for the Manhattan Project.
Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gordon D. Judkins served in the 393rd Bombardment Squadron.
Clark Royer worked for the United States Engineer District Office.