The Thomas Nast Society
   Encourages research, and preserves the original and published works of the cartoonist..
   http://www.jfpl.org/nast.htm

Thomas Nast - The Power of One Person's Wood Engravings
   Focusing primarily on how newspapers and the press covered major, and not so major, events in American history.
   http://www.historybuff.com/library/refnast.html