C. G. Coffrin

Wallace F. Stephenson

A. H. Weil

A. H. Weil worked for the United States Engineer District Office.

G. C. Henderson

G. C. Henderson worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Josef Novak

Josef Novak worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.