Frank L. Wolf

E. S. Ryan, Jr.

E. S. Ryan, Jr. worked for the Poe Piping & Heating Company.

M. W. Bjur

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.

C. E. Jakielski