Charles E. Hunt

R. O. Mitchell

R. O. Mitchell worked for the Roane-Anderson Company.

William Hinch

William Hinch was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

William Cavin

William Cavin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Frank D. Fancher