L. E. Tweksbury

Martha G. Johnson

Martha G. Johnson was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

C. P. Fortner

M. C. Ferguson

M. C. Ferguson worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Quentin V. Larson

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