Joseph Largur

G. L. Parvis

H. S. Russell

H. S. Russell worked for the Roane-Anderson Company.

Augustus B. Kinzel

Augustus “Gus” Kinzel was an American metallurgical engineer. He graduated at age eighteen from Columbia College, and earned a PhD in metallurgical engineering from the University of Nancy in France.

Raymond J. Elbert

Attended the University of Wisconsin.