Arthur Cayley - Wikipedia - Biography of the mathematician with links to relevant terms. - http://en.wikipedia.org/wiki/Arthur_Cayley
Cayley, Arthur (1821-1895) - Biography of the mathematician. From Eric Weisstein's World of Scientific Biography. - http://scienceworld.wolfram.com/biography/Cayley.html
Arthur Cayley - Biography of the mathematician with links to relevant terms and related links. From the MacTutor History of Mathematics Archive. - http://www-history.mcs.st-andrews.ac.uk/Biographies/Cayley.html