Cecil B. Flournoy

Opal MacDonald

Opal MacDonald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Michael Rimek

Michael Rimek was a laborer at the Metallurgical Laboratory in Chicago during the Manhattan Project.

J. T. Jenkins

Nellie Jennings

Nellie Jennings was a laboratory assistant at the Metallurgical Laboratory at the University of Chicago during the Manhattan Project.