John P. Draughon

Clarence H. Mathews

Clarence H. Mathews was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

C. F. Holt

Holt worked for Stone and Webster Engineering Corporation.

Clement James Rodden

Clement James Rodden was a consultatn at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Harold R. Walters