Rather than re-write the biography of TR, I have provided links to various sites which contain his biography and other facts and information about his incredible life.
Theodore Roosevelt Web Book
Theodore Roosevelt Association
Theodore Roosevelt's Speeches
Theodore Roosevelt National Park
Theodore Roosevelt's Square Deal
The Rise of Theodore Roosevelt by Edmund Morris, 1979.
Theodore Rex by Edmund Morris, 2001.
Colonel Roosevelt by Edmund Morris, 2010.
Edith Kermit Roosevelt: Portrait of a First Lady by Sylvia Morris, 2001.
The White House Gang by Earl Looker, 1929.
Mornings on Horseback by David McCullough, 1982.
The River of Doubt by Candice Miller, 2006.
Last, but certainly not least:
ANY of the books and articles written by TR himself!