List of United States Senators from Connecticut
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Connecticut ratified the Constitution on January 9, 1788.
Class 1
| Senator | Party | From | To |
|---|---|---|---|
| Oliver Ellsworth | Federalist | 1789 | 1796 |
| James Hillhouse | Federalist | 1796 | 1810 |
| Samuel W. Dana | Federalist | 1810 | 1821 |
| Elijah Boardman | Democrat | 1821 | 1823 |
| Henry W. Edwards | Democrat | 1823 | 1827 |
| Samuel A. Foote | National Republican | 1827 | 1833 |
| Nathan Smith | National Republican | 1833 | 1835 |
| John M. Niles | Democrat | 1835 | 1839 |
| Thaddeus Betts | Whig | 1839 | 1840 |
| Jabez W. Huntington | Whig | 1840 | 1847 |
| Roger S. Baldwin | Whig | 1847 | 1851 |
| Toucey Isaac | Democrat | 1852 | 1857 |
| Dixon James | Republican | 1857 | 1869 |
| William A. Buckingham | Republican | 1869 | 1875 |
| William W. Eaton | Democrat | 1875 | 1881 |
| Joseph R. Hawley | Republican | 1881 | 1905 |
| Morgan G. Bulkeley | Republican | 1905 | 1911 |
| George P. McLean | Republican | 1911 | 1929 |
| Frederic C. Walcott | Republican | 1929 | 1935 |
| Francis T. Maloney | Democrat | 1935 | 1945 |
| Thomas C. Hart | Republican | 1945 | 1946 |
| Raymond E. Baldwin | Republican | 1946 | 1949 |
| William B. Benton | Democrat | 1949 | 1953 |
| William A. Purtell | Republican | 1953 | 1959 |
| Thomas J. Dodd | Democrat | 1959 | 1971 |
| Lowell P. Weicker, Jr. | Republican | 1971 | 1989 |
| Joseph Lieberman | Democrat | 1989 |
Class 3
| Senator | Party | From | To |
|---|---|---|---|
| William S. Johnson | Federalist | 1789 | 1791 |
| Roger Sherman | Federalist | 1791 | 1793 |
| Stephen M. Mitchell | Federalist | 1793 | 1795 |
| Jonathan Trumbull, Jr. | Federalist | 1795 | 1796 |
| Uriah Tracy | Federalist | 1796 | 1807 |
| Chauncey Goodrich | Federalist | 1807 | 1813 |
| David Daggett | Federalist | 1813 | 1819 |
| James Lanman | Democrat | 1819 | 1825 |
| Calvin Willey | National Republican | 1825 | 1831 |
| Gideon Tomlinson | National Republican | 1831 | 1837 |
| Perry Smith | Democrat | 1837 | 1843 |
| John M. Niles | Democrat | 1843 | 1849 |
| Truman Smith | Whig | 1849 | 1854 |
| Francis Gillette | Free Soil | 1854 | 1855 |
| Lafayette S. Foster | Whig, Republican | 1855 | 1867 |
| Orris S. Ferry | Republican | 1867 | 1875 |
| James E. English | Democrat | 1875 | 1876 |
| William H. Barnum | Democrat | 1876 | 1879 |
| Orville H. Platt | Republican | 1879 | 1905 |
| Frank B. Brandegee | Republican | 1905 | 1924 |
| Hiram Bingham III | Republican | 1924 | 1933 |
| Augustine Lonergan | Democrat | 1933 | 1939 |
| John A. Danaher | Republican | 1939 | 1945 |
| James O'B. McMahon | Democrat | 1945 | 1952 |
| William A. Purtell | Republican | 1952 | 1952 |
| Prescott S. Bush | Republican | 1952 | 1963 |
| Abraham A. Ribicoff | Democrat | 1963 | 1981 |
| Christopher Dodd | Democrat | 1981 |