Wilbur E. Davis

H. P. Graves

H. P. Graves worked in the United States Engineer District Office.

John J. Norton

John J. Norton was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Benjamin E. Hedges

C. L. McCallum

C. L. McCallum worked for the Tennessee Eastman Corporation at the Y-12 Plant.