Harold E. Timberly

J. H. Marsh

J. H. Marsh worked for the Kellex Corporation at the K-25 Plant.

M. E. Ridge

M. E. Ridge worked for the United States Engineer District Office.

Philip Grant Koontz

Philip G. Koontz was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Alice Delage