Ambrose Knapinski

John Miles

John Miles was a physicist for the DuPont Company. During the Manhattan Project, he worked at the University of Chicago Met Lab and at Hanford.

Sara B. Chettkow

Sara B. Chettkow was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

R. C. Sylvester

Richard E. Bateman