McKinley dies eight days later. Vice-President Theodore Roosevelt, at 42, becomes the youngest U.S. president. Anthony F. Luchich drills at Beaumont, Texas, and taps a well that produces ...

Legacy After assuming the presidency when McKinley was assassinated, Theodore Roosevelt, at 42, was and remains the youngest chief executive in the nation’s history. Gifted in administration, ...

On September 14, 1901, Theodore Roosevelt, takes the oath of office and, at 42 years old, he becomes the youngest president in American history. After William McKinley's assassination, Theodore ...

Campaign In 1901, Roosevelt became the 25th Vice President of the United States. On September 14, 1901, President William McKinley was assassinated. At the age of 42, Theodore Roosevelt became the ...