42
Teddy Roosevelt was the youngest u.s. president. He was 42 when he took office after William McKinley was assasinated.Teddy Roosevelt, 42.The youngest was Theodore Roosevelt and he was 42 when he took office. A lot of people say the youngest was John F. Kennedy, but those people are wrong. JFK was 43 when he took office. The youngest was Theodore Roosevelt and he was 42 when he took office. A lot of people say the youngest was John F. Kennedy, but those people are wrong. JFK was 43 when he took office.
When Theodore Roosevelt was sworn in as US President on 14 September 1901, he was 42 years old.
When Theodore Roosevelt became President, he was aged 42. He was the youngest US President at that time.
Theodore Roosevelt took part in the invasion of Cuba.
Theodore Roosevelt took office on September 14, 1901 and left in March 4, 1909.
he went in help people out and should him that he was going to make every thing good
Vice President Theodore Roosevelt took over the Presidency after the assassination of William McKinley in September, 1901.
Theodore Roosevelt took office as President on September 14,1901 when President McKinley died from an assassin's bullet.
Theodore Roosevelt took office as President on September 14,1901 when President McKinley died from an assassin's bullet.
Theodore Roosevelt was only 42 when he first took office as President in 1901. He turned 43 about a month later.
Polk, Garfield, Cleveland, Theodore Roosevelt, Clinton and Obama were all under 50 when they first became President.
None. The youngest President was Theodore Roosevelt who took office when he was 42 years of age.