Mark C. Fox

H. H. Miller

Kenneth E. Zimmerman

Kenneth Zimmerman worked for the United States Engineer District Office.

Rozel E. Curtis

Rozel E. Curtis was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Raymond F. Frank

Raymond Frank was a metallurgist at the University of Chicago and stayed with the Met Lab after graduating from the university.