Biography.com: Hamilton, Sir William  
   Brief outline of his life.
   http://search.biography.com/print_record.pl?id=8909

William Hamilton: Logician  
   Concise profile from the Hamilton National Genealogical Society.
   http://www.hamiltongensociety.org/philosopher.htm

Philosophers: Sir William Hamilton  
   Passage from the Cambridge History of English and American Literature, discussing this Scottish thinker in context.
   http://www.bartleby.com/224/0105.html

William Hamilton  
   Brief article from the Internet Encyclopedia of Philosophy, covering this Scottish scholar's life and views.
   http://www.iep.utm.edu/h/hamilton.htm