John P. Engel

C. T. Vettel

C. T. Vettel worked for the United States Engineer District Office.

Beatrice Foreman

Beatrice Foreman was a laboratory technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

E. E. Bedwell

J. P. Valliant

J. P. Valliant worked for the Union Carbide & Carbon Corporation.