J. I. Smith

Margaret J. Newton

Margaret Newton worked for the Fercleve Corporation.

L. Krug

L. Krug worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.

George Craig

Clyde Fiddler

Clyde Fiddler was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.