Robert L. Higgins

K. G. Noyinger

H. M. Bryant

H. M. Bryant worked for the Comstock-Bryant Electric Company.

Lenora Stallings

Lenora Stallings was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Sidney Williams

Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.