Who were the presidents to serve one term?

2nd Pres. John Adams (1797-1801)

6th Pres. John Quincy Adams (1825-1829)

8th Pres. Martin Van Buren (1837-1841)

11th Pres. James K. Polk (1845-1849)

14th Pres. Franklin Pierce (1853-1857)

15th Pres. James Buchanan (1857-1861)

19th Pres. Rutherford B. Hayes (1877-1881)

23rd Pres. Benjamin Harrison (1889-1893)

27th Pres. William Howard Taft (1909-1913)

31st Pres. Herbert Hoover (1929-1933)

39th Pres. Jimmy Carter (1977-1981)

41st Pres. George H.W. Bush (1989-1993)