W. R. McCauley, Jr.

G. F. Brown

G. F. Brown worked for the Union Carbide & Carbon Corporation.

Arthur E. Kelman

Attended the Cooper Union for the Advancement of Science and Art.

W. Maddox

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

Ralph C. Sparks