William O. Shropshire

Lucille Halverson

Lucille Halverson worked for the Roane-Anderson Company.

Ruth Hoffberg

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

J. A. McDonald

Bernard T. Feld

Bernard T. Feld was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.