E. P. Dunham

C. W. Robert

C. W. Robert worked for the H. K. Ferguson Company.

T. M. Yakimchick

T. M. Yakimchick worked for the United States Engineer District Office.

Alexander Glon

Alexander Glon was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Frank H. Poulson