W. J. McAdams

E. C. Cathcart

Cathcart worked in the United States Engineer District Office.

Ernest J. Hansen

K. L. Townsend

K. L. Townsend worked for the United States Engineer District Office.

H.A. Fettinger

H.A. Fettinger was a junior physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.