This depends on the country/organization. See related questions.
US: William Howard Taft until March 4, replaced by Thomas Woodrow Wilson.
William Howard Taft was the 27th President of the United States from 1909 March 4 to 1913 March 4. After his re-nomination in 1912 and the break of Roosevelt from the core of the Republicans, the Republican Party was destroyed in the election, ceding the presidency to Woodrow Wilson and the Democrats.
Woodrow Wilson was the 28th President of the United States from 1913 March 4 to 1921 March 4. Although he initially kept the US out of the World War in his first term, the US joined the war in his second term. He is also known for his creation of the League of Nations after the war.
McKinley (1901), T. Roosevelt (1901-1909), Taft (1909-1913), Wilson (1913-1921) and Harding (1921).
William H. Taft was 27th US President, serving from 1909-1913.
William Howard Taft served as the 27th US President from March 4, 1909 to March 3, 1913.
William Howard Taft was president in 1911, serving from 1909-1913.
President Taft
James S. Sherman was the Vice President from 1909-1912 under President William Howard Taft (1909-1913)
The 27th President of the United States was William Howard Taft from March 4, 1909 to March 4, 1913
William Howard Taft was US President from 1909-1913, and Chief Justice of the Supreme Court from 1921-1930.
President Taft was inaugurated on March 4, 1909 and served until March 3, 1913.
President William Howard Taft: 1909-1913
Wm. H. Taft became President on 4 March 1909 at age 51.
Theodore Roosevelt 1901-1909 William H. Taft 1909-1913 Woodrow Wilson 1913-1921