Marvin A. Friedman

Anton Kegl

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

W. C. Keettel

W. C. Keettel worked for the United States Engineer District Office.

R. E. McClure

G. A. Nichols

G. A. Nichols worked for the United States Engineer District Office.