James W. Babcock, Jr.

R. G. Nicol

Betty Gaevada

Betty Gaevada was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Eva Roberts

Eva Roberts was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.

P. L. Rothchild

P. L. Rothchild worked for the United States Engineer District Office.