John R. Raper

R. Dallimonti

Dallimonti worked in the United States Engineer District Office.

Walter Groeger

Walter Groeger worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

W. J. Schabot

W. J. Schabot worked for the Union Carbide & Carbon Corporation.

Elmo M. Maeder