Jean M. Davis

H. G. Singleton

H. G. Singleton worked for the Roane-Anderson Company.

Neat A. Hutchins

F. R. Conklin

F. R. Conklin worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Clarence H. Mathews

Clarence H. Mathews was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.