J. I. Smith

Eleanor Lewis

Eleanor Lewis was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Walter S. Carpenter, Jr.

Walter Samuel Carpenter, Jr. was a corporate executive at DuPont who oversaw the company's involvement in the Manhattan Project.

L. L. Swift

H. P. Graves

Graves worked in the United States Engineer District Office.