John E. Keller

William S. Johnston

William S. Johnston was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

G. C. Hyneman

G. C. Hyneman worked for the Edenfield Electric Company.

Reid Cameron

E. P. Marguerat

E. P. Marguerat worked for the Union Carbide & Carbon Corporation.