Charles W. Josifek

V. N. Lay

K. R. Brown

Brown worked in the United States Engineer District.

Evelyn O. Gaston

Evelyn O. Gaston was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

V. Flagg

V. Flagg worked for the Watson-Flagg Engineering Company.