William O. McCord, Jr.

Fred Vaslow

Fred Vaslow, a physical chemist, began working on the Manhattan Project while a graduate student at the University of Chicago.

Merril F. Buck

Alfred Simon

Alfred Simon was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Francis L. Friedman

Francis L. Friedman was a theoretical physicist and group leader at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.