Nikola Tesla
International Correspondence Schools
Margaret Cheney
Russell Marion Kerchner
Thomas Commerford Martin
Peter Vas
S. A. Nasar
D. W. Novotny
John R. Duff
M. G. Say
Charles Proteus Steinmetz
Thomas S. Kubala
Albert Frederick Puchstein
O'Neill, John J.
K. Y. Tang
Samuel Sheldon
Frederick Bedell