E. A. Koutnik

C. P. Render

C. P. Render worked for the J.A. Jones Construction Company.

Lawrence B. Magnusson

Lawrence B. Magnusson was a research associate at the Metallurgical Laboratory at the University of Chicago.

B. N. Stiller

B. N. Stiller worked for the United States Engineer District Office.

E.P. Skow