Edward C. Stephenson

G. E. McAllister

G. E. McAllister worked for the United States Engineer District Office.

T. J. O’Donnell

T. J. O’Donnell was the Shop Chief at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

LaVerne R. Esau

F. B. Wells

Wells worked for Stone and Webster Engineering Corporation.