J. S. Gehrken

C. A. Lindenmeyer

C. A. Lindenmeyer worked for the Midwest Piping and Supply Company.

R. R. Wischmeyer

R. R. Wischmeyer worked for the Midwest Piping and Supply Company.

M. A. Campbell

M. A. Campbell worked for the Roane-Anderson Company.

Gerald H. McKay