18th century
1 George Washington (1789–1797)
2 John Adams (1797–1801)
19th century
3 Thomas Jefferson (1801–1809)
4 James Madison (1809–1817)
5 James Monroe (1817–1825)
6 John Quincy Adams (1825–1829)
7 Andrew Jackson (1829–1837)
8 Martin Van Buren (1837–1841)
9 William Henry Harrison (1841)
10 John Tyler (1841–1845)
11 James K. Polk (1845–1849)
12 Zachary Taylor (1849–1850)
13 Millard Fillmore (1850–1853)
14 Franklin Pierce (1853–1857)
15 James Buchanan (1857–1861)
16 Abraham Lincoln (1861–1865)
17 Andrew Johnson (1865–1869)
18 Ulysses S. Grant (1869–1877)
19 Rutherford B. Hayes (1877–1881)
20 James Garfield (1881)
21 Chester A. Arthur (1881–1885)
22 Grover Cleveland (1885–1889)
23 Benjamin Harrison (1889–1893)
24 Grover Cleveland (1893–1897)
25 William McKinley (1897–1901)
20th century
26 Theodore Roosevelt (1901–1909)
27 William Howard Taft (1909–1913)
28 Woodrow Wilson (1913–1921)
29 Warren G. Harding (1921–1923)
30 Calvin Coolidge (1923–1929)
31 Herbert Hoover (1929-1933)
32 Franklin D. Roosevelt (1933–1945)
33 Harry S. Truman (1945–1953)
34 Dwight D. Eisenhower (1953–1961)
35 John F. Kennedy (1961–1963)
36 Lyndon B. Johnson (1963–1969)
37 Richard M. Nixon (1969–1974)
38 Gerald R. Ford (1974–1977)
39 James Carter (1977–1981)
40 Ronald Reagan (1981–1989)
41 George H.W. Bush (1989–1993)
42 William J. Clinton (1993–2001)
21st century
43 George W. Bush (2001–2009)
44 Barack Obama (2009–present)