George H. O’Connell

Carlie Ann Gentry

Gentry worked in the United States Engineer District Office.

S.T. Cantrill

S. T. Cantrill was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

F. E. Hawkins

M. G. Sonner

M. G. Sonner worked for the J.A. Jones Construction Company.