Thomas H. Fithian

E.L. Smith

C. A. Billings

C. A. Billings worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Sam Hardie Jr.

Hardie worked in the United States Engineer District Office.

Evelyn Dunbar

Evelyn Dunbar was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.