This is a complete list of United States representatives during the 30th United States Congress listed by seniority.
As an historical article, the districts and party affiliations listed reflect those during the 30th Congress (March 4, 1847 – March 3, 1849). Seats and party affiliations on similar lists for other congresses will be different for certain members. [1]
Seniority depends on the date on which members were sworn into office. Since many members are sworn in on the same day, subsequent ranking is based on previous congressional service of the individual and then by alphabetical order by the last name of the representative.
Committee chairmanship in the House is often associated with seniority. However, party leadership is typically not associated with seniority.
Note: The "*" indicates that the representative/delegate may have served one or more non-consecutive terms while in the House of Representatives of the United States Congress.
| Rank | Representative | Party | District | Seniority date (Previous service, if any) | No.# of term(s) | Notes |
|---|---|---|---|---|---|---|
| 1 | John Quincy Adams | W | MA-08 | March 4, 1831 | 9th term | Dean of the House Died on February 23, 1848. |
| 2 | James Iver McKay | D | NC-07 | March 4, 1831 | 9th term | Dean of the House after Adams died. Left the House in 1849. |
| 3 | Robert Rhett | D | SC-07 | March 4, 1837 | 6th term | Left the House in 1849. |
| 4 | Linn Boyd | D | KY-01 | March 4, 1839 Previous service, 1835–1837. | 6th term* | |
| 5 | Isaac E. Holmes | D | SC-06 | March 4, 1839 | 5th term | |
| 6 | Jacob Thompson | D | MS-01 | March 4, 1839 | 5th term | |
| 7 | John Reeves Jones Daniel | D | NC-06 | March 4, 1841 | 4th term | |
| 8 | George S. Houston | D | AL-05 | March 4, 1841 | 4th term | Left the House in 1849. |
| 9 | Charles J. Ingersoll | D | PA-04 | March 4, 1841 Previous service, 1813–1815. | 5th term* | Left the House in 1849. |
| 10 | Charles Hudson | W | MA-05 | May 3, 1841 | 4th term | Left the House in 1849. |
| 11 | Joseph R. Ingersoll | W | PA-02 | October 12, 1841 Previous service, 1835–1837. | 5th term* | Left the House in 1849. |
| 12 | Robert C. Winthrop | W | MA-01 | November 29, 1842 Previous service, 1840–1842. | 6th term* | Speaker of the House |
| 13 | Joshua R. Giddings | W | OH-20 | December 5, 1842 Previous service, 1838–1842. | 7th term* | |
| 14 | Amos Abbott | W | MA-03 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 15 | Archibald Atkinson | D | VA-01 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 16 | Daniel Moreau Barringer | W | NC-03 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 17 | James A. Black | D | SC-01 | March 4, 1843 | 3rd term | Died on April 3, 1848. |
| 18 | James B. Bowlin | D | MO-01 | March 4, 1843 | 3rd term | |
| 19 | Richard Brodhead | D | PA-10 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 20 | Armistead Burt | D | SC-05 | March 4, 1843 | 3rd term | |
| 21 | Howell Cobb | D | GA-06 | March 4, 1843 | 3rd term | |
| 22 | Jacob Collamer | W | VT-02 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 23 | George Dromgoole | D | VA-02 | March 4, 1843 Previous service, 1835–1841. | 6th term* | Died on April 27, 1847. |
| 24 | Orlando B. Ficklin | D | IL-03 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 25 | Hugh A. Haralson | D | GA-04 | March 4, 1843 | 3rd term | |
| 26 | Thomas J. Henley | D | IN-02 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 27 | Washington Hunt | W | NY-34 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 28 | Andrew Johnson | D | TN-01 | March 4, 1843 | 3rd term | |
| 29 | George W. Jones | D | TN-05 | March 4, 1843 | 3rd term | |
| 30 | Daniel P. King | W | MA-02 | March 4, 1843 | 3rd term | |
| 31 | John H. Lumpkin | D | GA-05 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 32 | William B. Maclay | D | NY-04 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 33 | George P. Marsh | W | VT-03 | March 4, 1843 | 3rd term | |
| 34 | Robert McClelland | D | MI-01 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 35 | John A. McClernand | D | IL-02 | March 4, 1843 | 3rd term | |
| 36 | Abraham R. McIlvaine | W | PA-07 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 37 | John Pettit | D | IN-08 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 38 | Julius Rockwell | W | MA-07 | March 4, 1843 | 3rd term | |
| 39 | Robert C. Schenck | W | OH-03 | March 4, 1843 | 3rd term | |
| 40 | Richard F. Simpson | D | SC-02 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 41 | Caleb B. Smith | W | IN-04 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 42 | Robert Smith | D | IL-01 | March 4, 1843 | 3rd term | Left the House in 1849. |
| 43 | Andrew Stewart | W | PA-18 | March 4, 1843 Previous service, 1821–1829 and 1831–1835. | 9th term** | Left the House in 1849. |
| 44 | Samuel Finley Vinton | W | OH-12 | March 4, 1843 Previous service, 1823–1837. | 10th term* | |
| 45 | John Wentworth | D | IL-04 | March 4, 1843 | 3rd term | |
| 46 | Joseph A. Woodward | D | SC-03 | March 4, 1843 | 3rd term | |
| 47 | Alexander H. Stephens | W | GA-07 | October 2, 1843 | 3rd term | |
| 48 | Joseph Grinnell | W | MA-10 | December 7, 1843 | 3rd term | |
| 49 | James Pollock | W | PA-13 | April 5, 1844 | 3rd term | Left the House in 1849. |
| 50 | Thomas H. Bayly | D | VA-07 | May 6, 1844 | 3rd term | |
| 51 | Isaac E. Morse | D | LA-04 | December 2, 1844 | 3rd term | |
| 52 | George Ashmun | W | MA-06 | March 4, 1845 | 2nd term | |
| 53 | Henry Bedinger | D | VA-10 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 54 | John Blanchard | W | PA-17 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 55 | William G. Brown, Sr. | D | VA-15 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 56 | Charles W. Cathcart | D | IN-09 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 57 | John G. Chapman | W | MD-01 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 58 | Lucien Bonaparte Chase | D | TN-09 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 59 | William M. Cocke | W | TN-02 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 60 | John H. Crozier | W | TN-03 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 61 | John D. Cummins | D | OH-16 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 62 | James Dixon | W | CT-01 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 63 | Joseph E. Edsall | D | NJ-03 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 64 | James J. Faran | D | OH-01 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 65 | George Fries | D | OH-17 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 66 | Meredith P. Gentry | W | TN-07 | March 4, 1845 Previous service, 1839–1843. | 4th term* | |
| 67 | Artemas Hale | W | MA-09 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 68 | James G. Hampton | W | NJ-01 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 69 | Henry W. Hilliard | W | AL-02 | March 4, 1845 | 2nd term | |
| 70 | Elias B. Holmes | W | NY-28 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 71 | John W. Houston | W | DE | March 4, 1845 | 2nd term | |
| 72 | Samuel D. Hubbard | W | CT-02 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 73 | Timothy Jenkins | D | NY-20 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 74 | James H. Johnson | D | NH-04 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 75 | Thomas B. King | W | GA-01 | March 4, 1845 Previous service, 1839–1843. | 4th term* | |
| 76 | Lewis C. Levin | W | PA-01 | March 4, 1845 | 2nd term | |
| 77 | Thomas W. Ligon | D | MD-03 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 78 | John Pendleton | W | VA-09 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 79 | John S. Phelps | D | MO-05 | March 4, 1845 | 2nd term | |
| 80 | John A. Rockwell | W | CT-03 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 81 | Joseph M. Root | W | OH-21 | March 4, 1845 | 2nd term | |
| 82 | William Sawyer | D | OH-05 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 83 | Truman Smith | W | CT-04 | March 4, 1845 Previous service, 1839–1843. | 4th term* | Left the House in 1849. |
| 84 | Alexander D. Sims | D | SC-04 | March 4, 1845 | 2nd term | Died on November 22, 1848. |
| 85 | Frederick P. Stanton | D | TN-10 | March 4, 1845 | 2nd term | |
| 86 | John Strohm | W | PA-08 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 87 | Bannon Goforth Thibodeaux | W | LA-02 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 88 | James Thompson | D | PA-23 | March 4, 1845 | 2nd term | |
| 89 | Robert Toombs | W | GA-08 | March 4, 1845 | 2nd term | |
| 90 | Hugh White | W | NY-16 | March 4, 1845 | 2nd term | |
| 91 | William W. Wick | D | IN-05 | March 4, 1845 Previous service, 1839–1841. | 3rd term* | Left the House in 1849. |
| 92 | Hezekiah Williams | D | ME-07 | March 4, 1845 | 2nd term | Left the House in 1849. |
| 93 | David Wilmot | D | PA-12 | March 4, 1845 | 2nd term | |
| 94 | John H. Harmanson | D | LA-03 | December 1, 1845 | 2nd term | |
| 95 | Emile La Sére | D | LA-01 | January 29, 1846 | 2nd term | |
| 96 | James McDowell | D | VA-11 | March 6, 1846 | 2nd term | |
| 97 | David S. Kaufman | D | TX-01 | March 30, 1846 | 2nd term | |
| 98 | Timothy Pilsbury | D | TX-02 | March 30, 1846 | 2nd term | Left the House in 1849. |
| 99 | Franklin Welsh Bowdon | D | AL-07 | December 7, 1846 | 2nd term | |
| 100 | Shepherd Leffler | D | IA-02 | December 29, 1846 | 2nd term | |
| 101 | Green Adams | W | KY-06 | March 4, 1847 | 1st term | Left the House in 1849. |
| 102 | Washington Barrow | W | TN-08 | March 4, 1847 | 1st term | Left the House in 1849. |
| 103 | Richard L. T. Beale | D | VA-08 | March 4, 1847 | 1st term | Left the House in 1849. |
| 104 | Hiram Belcher | W | ME-03 | March 4, 1847 | 1st term | Left the House in 1849. |
| 105 | Kinsley S. Bingham | D | MI-03 | March 4, 1847 | 1st term | |
| 106 | Ausburn Birdsall | D | NY-22 | March 4, 1847 | 1st term | Left the House in 1849. |
| 107 | Thomas S. Bocock | D | VA-04 | March 4, 1847 | 1st term | |
| 108 | John Botts | W | VA-06 | March 4, 1847 Previous service, 1839–1843. | 3rd term* | Left the House in 1849. |
| 109 | Nathaniel Boyden | W | NC-02 | March 4, 1847 | 1st term | Left the House in 1849. |
| 110 | Edward Bradley | D | MI-02 | March 4, 1847 | 1st term | Died on August 5, 1847. |
| 111 | Jasper E. Brady | W | PA-16 | March 4, 1847 | 1st term | Left the House in 1849. |
| 112 | Albert G. Brown | D | MS-04 | March 4, 1847 Previous service, 1839–1841. | 2nd term* | |
| 113 | Charles Brown | D | PA-03 | March 4, 1847 Previous service, 1841–1843. | 2nd term* | Left the House in 1849. |
| 114 | Aylette Buckner | W | KY-04 | March 4, 1847 | 1st term | Left the House in 1849. |
| 115 | Chester Pierce Butler | W | PA-11 | March 4, 1847 | 1st term | |
| 116 | Edward C. Cabell | W | FL | March 4, 1847 Previous service, 1845–1846. | 2nd term* | |
| 117 | Richard S. Canby | W | OH-04 | March 4, 1847 | 1st term | Left the House in 1849. |
| 118 | Asa Clapp | D | ME-02 | March 4, 1847 | 1st term | Left the House in 1849. |
| 119 | Franklin Clark | D | ME-04 | March 4, 1847 | 1st term | Left the House in 1849. |
| 120 | Beverly L. Clarke | D | KY-02 | March 4, 1847 | 1st term | Left the House in 1849. |
| 121 | Thomas L. Clingman | W | NC-01 | March 4, 1847 Previous service, 1843–1845. | 2nd term* | |
| 122 | Williamson R. W. Cobb | D | AL-06 | March 4, 1847 | 1st term | |
| 123 | William Collins | D | NY-18 | March 4, 1847 | 1st term | Left the House in 1849. |
| 124 | Harmon S. Conger | W | NY-25 | March 4, 1847 | 1st term | |
| 125 | Robert B. Cranston | W | RI-01 | March 4, 1847 Previous service, 1837–1843. | 4th term* | Left the House in 1849. |
| 126 | John W. Crisfield | W | MD-06 | March 4, 1847 | 1st term | Left the House in 1849. |
| 127 | John Crowell | W | OH-19 | March 4, 1847 | 1st term | |
| 128 | John Dickey | W | PA-20 | March 4, 1847 Previous service, 1843–1845. | 2nd term* | Left the House in 1849. |
| 129 | Rodolphus Dickinson | D | OH-06 | March 4, 1847 | 1st term | |
| 130 | Richard S. Donnell | W | NC-08 | March 4, 1847 | 1st term | Left the House in 1849. |
| 131 | William Duer | W | NY-23 | March 4, 1847 | 1st term | |
| 132 | Daniel Duncan | W | OH-10 | March 4, 1847 | 1st term | Left the House in 1849. |
| 133 | Garnett Duncan | W | KY-07 | March 4, 1847 | 1st term | Left the House in 1849. |
| 134 | George G. Dunn | W | IN-06 | March 4, 1847 | 1st term | Left the House in 1849. |
| 135 | George N. Eckert | W | PA-14 | March 4, 1847 | 1st term | Left the House in 1849. |
| 136 | Thomas O. Edwards | W | OH-09 | March 4, 1847 | 1st term | Left the House in 1849. |
| 137 | Elisha Embree | W | IN-01 | March 4, 1847 | 1st term | Left the House in 1849. |
| 138 | Alexander Evans | W | MD-05 | March 4, 1847 | 1st term | |
| 139 | Nathan Evans | W | OH-14 | March 4, 1847 | 1st term | |
| 140 | John W. Farrelly | W | PA-22 | March 4, 1847 | 1st term | Left the House in 1849. |
| 141 | Winfield S. Featherston | D | MS-02 | March 4, 1847 | 1st term | |
| 142 | David Fisher | W | OH-02 | March 4, 1847 | 1st term | Left the House in 1849. |
| 143 | Thomas Flournoy | D | VA-03 | March 4, 1847 | 1st term | Left the House in 1849. |
| 144 | John Freedley | W | PA-05 | March 4, 1847 | 1st term | |
| 145 | Richard French | D | KY-09 | March 4, 1847 Previous service, 1835–1837 and 1843–1845. | 3rd term** | Left the House in 1849. |
| 146 | Andrew S. Fulton | W | VA-13 | March 4, 1847 | 1st term | Left the House in 1849. |
| 147 | John P. Gaines | W | KY-10 | March 4, 1847 | 1st term | Left the House in 1849. |
| 148 | John Gayle | W | AL-01 | March 4, 1847 | 1st term | Left the House in 1849. |
| 149 | William L. Goggin | W | VA-05 | March 4, 1847 Previous service, 1839–1843 and 1844–1845. | 4th term** | Left the House in 1849. |
| 150 | Daniel Gott | W | NY-24 | March 4, 1847 | 1st term | |
| 151 | James S. Green | D | MO-03 | March 4, 1847 | 1st term | |
| 152 | Dudley S. Gregory | W | NJ-05 | March 4, 1847 | 1st term | Left the House in 1849. |
| 153 | Nathan K. Hall | W | NY-32 | March 4, 1847 | 1st term | Left the House in 1849. |
| 154 | Willard Preble Hall | D | MO-04 | March 4, 1847 | 1st term | |
| 155 | David Hammons | D | ME-01 | March 4, 1847 | 1st term | Left the House in 1849. |
| 156 | Moses Hampton | W | PA-21 | March 4, 1847 | 1st term | |
| 157 | Sampson W. Harris | D | AL-03 | March 4, 1847 | 1st term | |
| 158 | William Henry | W | VT-01 | March 4, 1847 | 1st term | |
| 159 | Hugh Lawson White Hill | D | TN-04 | March 4, 1847 | 1st term | Left the House in 1849. |
| 160 | William T. Haskell | W | TN-11 | March 4, 1847 | 1st term | Left the House in 1849. |
| 161 | John M. Holley | W | NY-27 | March 4, 1847 | 1st term | Died on March 8, 1848. |
| 162 | John W. Hornbeck | W | PA-06 | March 4, 1847 | 1st term | Died on January 16, 1848. |
| 163 | Samuel W. Inge | D | AL-04 | March 4, 1847 | 1st term | |
| 164 | Alexander Irvin | W | PA-24 | March 4, 1847 | 1st term | Left the House in 1849. |
| 165 | Alfred Iverson, Sr. | D | GA-02 | March 4, 1847 | 1st term | Left the House in 1849. |
| 166 | David S. Jackson | D | NY-06 | March 4, 1847 | 1st term | Resigned on April 19, 1848. |
| 167 | John Jameson | D | MO-02 | March 4, 1847 Previous service, 1839–1841 and 1843–1845. | 3rd term** | Left the House in 1849. |
| 168 | Daniel B. St. John | W | NY-09 | March 4, 1847 | 1st term | Left the House in 1849. |
| 169 | Robert W. Johnson | D | AR | March 4, 1847 | 1st term | |
| 170 | John W. Jones | W | GA-03 | March 4, 1847 | 1st term | Left the House in 1849. |
| 171 | Orlando Kellogg | W | NY-14 | March 4, 1847 | 1st term | Left the House in 1849. |
| 172 | William Kennon, Jr. | D | OH-15 | March 4, 1847 | 1st term | Left the House in 1849. |
| 173 | Samuel Lahm | D | OH-18 | March 4, 1847 | 1st term | Left the House in 1849. |
| 174 | Sidney Lawrence | D | NY-15 | March 4, 1847 | 1st term | Left the House in 1849. |
| 175 | William T. Lawrence | W | NY-26 | March 4, 1847 | 1st term | Left the House in 1849. |
| 176 | Abraham Lincoln | W | IL-07 | March 4, 1847 | 1st term | Left the House in 1849. |
| 177 | Frederick W. Lord | D | NY-01 | March 4, 1847 | 1st term | Left the House in 1849. |
| 178 | Job Mann | D | PA-19 | March 4, 1847 Previous service, 1835–1837. | 2nd term* | |
| 179 | Dudley Marvin | W | NY-31 | March 4, 1847 Previous service, 1823–1829. | 4th term* | Left the House in 1849. |
| 180 | Robert M. McLane | D | MD-04 | March 4, 1847 | 1st term | |
| 181 | John K. Miller | D | OH-11 | March 4, 1847 | 1st term | |
| 182 | Charles S. Morehead | W | KY-08 | March 4, 1847 | 1st term | |
| 183 | Jonathan D. Morris | D | OH-07 | March 4, 1847 | 1st term | |
| 184 | Joseph Mullin | W | NY-19 | March 4, 1847 | 1st term | Left the House in 1849. |
| 185 | Henry C. Murphy | D | NY-02 | March 4, 1847 Previous service, 1843–1845. | 2nd term* | Left the House in 1849. |
| 186 | William Nelson | W | NY-07 | March 4, 1847 | 1st term | |
| 187 | Henry Nes | W | PA-15 | March 4, 1847 Previous service, 1843–1845. | 2nd term* | |
| 188 | William A. Newell | W | NJ-02 | March 4, 1847 | 1st term | |
| 189 | Henry Nicoll | D | NY-03 | March 4, 1847 | 1st term | Left the House in 1849. |
| 190 | David Outlaw | W | NC-09 | March 4, 1847 | 1st term | |
| 191 | John G. Palfrey | W | MA-04 | March 4, 1847 | 1st term | Left the House in 1849. |
| 192 | Charles H. Peaslee | D | NH-02 | March 4, 1847 | 1st term | |
| 193 | Lucius B. Peck | D | VT-04 | March 4, 1847 | 1st term | |
| 194 | George Petrie | D | NY-17 | March 4, 1847 | 1st term | Left the House in 1849. |
| 195 | Samuel Peyton | D | KY-03 | March 4, 1847 | 1st term | Left the House in 1849. |
| 196 | Harvey Putnam | W | NY-33 | March 4, 1847 Previous service, 1838–1839. | 2nd term* | |
| 197 | Gideon Reynolds | W | NY-12 | March 4, 1847 | 1st term | |
| 198 | Thomas Ritchey | D | OH-13 | March 4, 1847 | 1st term | Left the House in 1849. |
| 199 | John L. Robinson | D | IN-03 | March 4, 1847 | 1st term | |
| 200 | William R. Rockhill | D | IN-10 | March 4, 1847 | 1st term | Left the House in 1849. |
| 201 | James D. Roman | W | MD-02 | March 4, 1847 | 1st term | Left the House in 1849. |
| 202 | Robert L. Rose | W | NY-29 | March 4, 1847 | 1st term | |
| 203 | David Rumsey | W | NY-30 | March 4, 1847 | 1st term | |
| 204 | Augustine Henry Shepperd | W | NC-04 | March 4, 1847 Previous service, 1827–1839 and 1841–1843. | 8th term** | |
| 205 | Eliakim Sherrill | W | NY-10 | March 4, 1847 | 1st term | Left the House in 1849. |
| 206 | Peter H. Silvester | W | NY-11 | March 4, 1847 | 1st term | |
| 207 | John I. Slingerland | W | NY-13 | March 4, 1847 | 1st term | Left the House in 1849. |
| 208 | Ephraim K. Smart | D | ME-05 | March 4, 1847 | 1st term | Left the House in 1849. |
| 209 | George A. Starkweather | D | NY-21 | March 4, 1847 | 1st term | Left the House in 1849. |
| 210 | William Strong | D | PA-09 | March 4, 1847 | 1st term | |
| 211 | Frederick A. Tallmadge | W | NY-05 | March 4, 1847 | 1st term | Left the House in 1849. |
| 212 | John L. Taylor | W | OH-08 | March 4, 1847 | 1st term | |
| 213 | James Houston Thomas | D | TN-06 | March 4, 1847 | 1st term | |
| 214 | John B. Thompson | W | KY-05 | March 4, 1847 | 1st term | |
| 215 | Richard W. Thompson | W | IN-07 | March 4, 1847 Previous service, 1841–1843. | 2nd term* | Left the House in 1849. |
| 216 | Robert A. Thompson | D | VA-14 | March 4, 1847 | 1st term | Left the House in 1849. |
| 217 | William Thompson | D | IA-01 | March 4, 1847 | 1st term | |
| 218 | Benjamin Babock Thurston | D | RI-02 | March 4, 1847 | 1st term | Left the House in 1849. |
| 219 | Patrick W. Tompkins | W | MS-03 | March 4, 1847 | 1st term | Left the House in 1849. |
| 220 | Amos Tuck | W | NH-01 | March 4, 1847 | 1st term | |
| 221 | Thomas J. Turner | D | IL-06 | March 4, 1847 | 1st term | Left the House in 1849. |
| 222 | Abraham W. Venable | D | NC-05 | March 4, 1847 | 1st term | |
| 223 | John Van Dyke | W | NJ-04 | March 4, 1847 | 1st term | |
| 224 | Cornelius Warren | W | NY-08 | March 4, 1847 | 1st term | Left the House in 1849. |
| 225 | James S. Wiley | D | ME-06 | March 4, 1847 | 1st term | Left the House in 1849. |
| 226 | James Wilson II | W | NH-03 | March 4, 1847 | 1st term | |
| Richard K. Meade | D | VA-02 | August 5, 1847 | 1st term | ||
| William B. Preston | W | VA-12 | November 25, 1847 | 1st term | Left the House in 1849. | |
| William A. Richardson | D | IL-05 | December 6, 1847 | 1st term | ||
| Charles E. Stuart | D | MI-02 | December 6, 1847 | 1st term | Left the House in 1849. | |
| Samuel A. Bridges | D | PA-06 | March 6, 1848 | 1st term | Left the House in 1849. | |
| Horace Mann | W | MA-08 | April 3, 1848 | 1st term | ||
| Mason C. Darling | D | WI-02 | June 8, 1848 | 1st term | Left the House in 1849. | |
| William Pitt Lynde | D | WI-01 | June 8, 1848 | 1st term | Left the House in 1849. | |
| Daniel Wallace | D | SC-01 | June 12, 1848 | 1st term | ||
| Esbon Blackmar | W | NY-27 | December 4, 1848 | 1st term | Left the House in 1849. | |
| Horace Greeley | W | NY-06 | December 4, 1848 | 1st term | Left the House in 1849. | |
| John McQueen | D | SC-04 | February 12, 1849 | 1st term | ||
| Rank | Delegate | Party | District | Seniority date (Previous service, if any) | No.# of term(s) | Notes |
|---|---|---|---|---|---|---|
| 1 | John Hubbard Tweedy | W | WI | March 4, 1847 | 1st term | |
| Henry Hastings Sibley | D | WI | October 30, 1848 | 1st term | ||
This article incorporates public domain material from Biographical Directory of the United States Congress. Federal government of the United States.