an executive officer of a firm or corporation

the person who holds the office of head of state of the United States government

the chief executive of a republic

the officer who presides at the meetings of an organization

the head administrative officer of a college or university

the office of the United States head of state

16th President of the United States; saved the Union during the American Civil War and emancipated the slaves; was assassinated by Booth (1809-1865)

6th President of the United States; son of John Adams (1767-1848)

2nd President of the United States (1735-1826)

17th President of the United States; was elected vice president and succeeded Lincoln when Lincoln was assassinated; was impeached but acquitted by one vote (1808-1875)

elected vice president and became 21st President of the United States when Garfield was assassinated (1830-1886)

23rd President of the United States (1833-1901)

15th President of the United States (1791-1868)

43rd President of the United States; son of George Herbert Walker Bush (born in 1946)

vice president under Reagan and 41st President of the United States (born in 1924)

39th President of the United States (1924-)

22nd and 24th President of the United States (1837-1908)

42nd President of the United States (1946-)

elected vice president and succeeded as 30th President of the United States when Harding died in 1923 (1872-1933)

United States general who supervised the invasion of Normandy and the defeat of Nazi Germany; 34th President of the United States (1890-1961)

elected vice president and became the 13th President of the United States when Zachary Taylor died in office (1800-1874)

38th President of the United States; appointed vice president and succeeded Nixon when Nixon resigned (1913-)

32nd President of the United States; elected four times; instituted New Deal to counter the Great Depression and led country during World War II (1882-1945)

20th President of the United States; assassinated by a frustrated office-seeker (1831-1881)

43rd President of the United States; son of George Herbert Walker Bush (born in 1946)

18th President of the United States; commander of the Union armies in the American Civil War (1822-1885)

29th President of the United States; two of his appointees were involved in the Teapot Dome scandal (1865-1823)

23rd President of the United States (1833-1901)

9th President of the United States; caught pneumonia during his inauguration and died shortly after (1773-1841)

19th President of the United States; his administration removed federal troops from the South and so ended the Reconstruction Period (1822-1893)

31st President of the United States; in 1929 the stock market crashed and the economy collapsed and Hoover was defeated for reelection by Franklin Roosevelt (1874-1964)

3rd President of the United States; chief drafter of the Declaration of Independence; made the Louisiana Purchase in 1803 and sent out the Lewis and Clark Expedition to explore it (1743-1826)

2nd President of the United States (1735-1826)

35th President of the United States; established the Peace Corps; assassinated in Dallas (1917-1963)

6th President of the United States; son of John Adams (1767-1848)

36th President of the United States; was elected vice president and succeeded Kennedy when Kennedy was assassinated (1908-1973)

17th President of the United States; was elected vice president and succeeded Lincoln when Lincoln was assassinated; was impeached but acquitted by one vote (1808-1875)

35th President of the United States; established the Peace Corps; assassinated in Dallas (1917-1963)

16th President of the United States; saved the Union during the American Civil War and emancipated the slaves; was assassinated by Booth (1809-1865)

36th President of the United States; was elected vice president and succeeded Kennedy when Kennedy was assassinated (1908-1973)

4th President of the United States; member of the Continental Congress and rapporteur at the Constitutional Convention in 1776; helped frame the Bill of Rights (1751-1836)

25th President of the United States; was assassinated by an anarchist (1843-1901)

5th President of the United States; author of the Monroe Doctrine (1758-1831)

vice president under Eisenhower and 37th President of the United States; resigned after the Watergate scandal in 1974 (1913-1994)

the person who holds the office of head of state of the United States government

the office of the United States head of state

14th President of the United States (1804-1869)

11th President of the United States; his expansionism led to the Mexican War and the annexation of California and much of the southwest (1795-1849)

40th President of the United States (1911-2004)

32nd President of the United States; elected four times; instituted New Deal to counter the Great Depression and led country during World War II (1882-1945)