J. P. Smith

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.

William H. Lawson

Donald A. Franke

Franke worked in the United States Engineer District Office.

M. E. Ober

M. E. Ober worked for the J.A. Jones Construction Company.