With the assassination of President William McKinley, Theodore Roosevelt, not quite 43, became the 26th and youngest President in the Nation's history (1901-1909). He brought new excitement and power to the office, vigorously leading Congress and the American public toward progressive reforms and a strong foreign policy. Learn more about the 26th and youngest President. Learn more about Theodore Roosevelt's spouse, Edith Kermit Carow Roosevelt. This book also features some of his great quotes that you will find inspiring.