File:Thomas Edison.jpg

This is from the Perry-Castañeda Library- see public domain notice at http://www.lib.utexas.edu/photodraw/portraits/

Image came via http://www.sru.edu/depts/cisba/compsci/dailey/217students/sgm8660/Final/

Original source: Current History of the War v.II (April 1915 - September 1915). New York: New York Times Company.