A. M. Howard

W.G. Chmielewski

W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Andrew M. Hedrick

H. E. Newman

H. E. Newman worked for the Tennessee Eastman Corporation at the Y-12 Plant.

E. J. Bloch

Bloch worked in the United States Engineer District Office.