Harry D. Andritsis

John Costa

John Costa worked at the shop in the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

A. G. Green

A. G. Green worked for the Tennessee Eastman Corporation at the Y-12 Plant.

J. W. Hammett

Ambroso Hoelscher

Ambroso Hoelscher was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.