William T. St. Clair

Dunell Cohn

Dunell Cohn was born in Oak Ridge, Tennessee, in 1944. Cohn’s father, Waldo, was recruited to work on the Manhattan Project in Chicago in 1942 for his work on radioisotopes at Berkeley and Harvard during the 1930s.

W. B. Dolan

J.R. Gamble

Sidney Williams

Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.