Leo C. Golden

Fred W. Goodloe

Fred W. Goodloe was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Frank E. Smith

P. D. Simpson

P. D. Simpson worked for the Poe Piping & Heating Company.

J. J. Donovan

J. J. Donovan worked for the H. K. Ferguson Company.