This is a complete list of United States representatives during the 42nd United States Congress listed by seniority.
As an historical article, the districts and party affiliations listed reflect those during the 42nd Congress (March 4, 1871 – March 3, 1873). 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 | Henry L. Dawes | R | MA-10 | March 4, 1857 | 8th term | Dean of the House |
| 2 | William D. Kelley | R | PA-04 | March 4, 1861 | 6th term | |
| 3 | Samuel Hooper | R | MA-04 | December 2, 1861 | 6th term | |
| 4 | Oakes Ames | R | MA-02 | March 4, 1863 | 5th term | Left the House in 1873. |
| 5 | James G. Blaine | R | ME-03 | March 4, 1863 | 5th term | Speaker of the House |
| 6 | Charles A. Eldredge | D | WI-04 | March 4, 1863 | 5th term | |
| 7 | John F. Farnsworth | R | IL-02 | March 4, 1863 Previous service, 1857–1861. | 7th term* | Left the House in 1873. |
| 8 | James A. Garfield | R | OH-19 | March 4, 1863 | 5th term | |
| 9 | Samuel J. Randall | D | PA-01 | March 4, 1863 | 5th term | |
| 10 | Glenni W. Scofield | R | PA-19 | March 4, 1863 | 5th term | |
| 11 | William B. Washburn | R | MA-09 | March 4, 1863 | 5th term | Resigned on December 5, 1871. |
| 12 | John Bingham | R | OH-16 | March 4, 1865 Previous service, 1855–1863. | 8th term* | Left the House in 1873. |
| 13 | Burton C. Cook | R | IL-06 | March 4, 1865 | 4th term | Resigned on August 26, 1871. |
| 14 | Michael C. Kerr | D | IN-02 | March 4, 1865 | 4th term | Left the House in 1873. |
| 15 | John H. Ketcham | R | NY-12 | March 4, 1865 | 4th term | Left the House in 1873. |
| 16 | John Lynch | R | ME-01 | March 4, 1865 | 4th term | Left the House in 1873. |
| 17 | Samuel S. Marshall | D | IL-11 | March 4, 1865 Previous service, 1855–1859. | 6th term* | |
| 18 | Ulysses Mercur | R | PA-13 | March 4, 1865 | 4th term | Resigned on December 2, 1872. |
| 19 | William E. Niblack | D | IN-01 | March 4, 1865 Previous service, 1857–1861. | 6th term* | |
| 20 | Philetus Sawyer | R | WI-05 | March 4, 1865 | 3rd term | |
| 21 | Nathaniel P. Banks | R | MA-06 | December 4, 1865 Previous service, 1853–1857. | 7th term* | Left the House in 1873. |
| 22 | Horace Maynard | R | TN-02 | July 24, 1866 Previous service, 1857–1863. | 7th term* | |
| 23 | George M. Adams | D | KY-08 | March 4, 1867 | 3rd term | |
| 24 | Stevenson Archer | D | MD-02 | March 4, 1867 | 3rd term | |
| 25 | William Henry Barnum | D | CT-04 | March 4, 1867 | 3rd term | |
| 26 | James B. Beck | D | KY-07 | March 4, 1867 | 3rd term | |
| 27 | Austin Blair | R | MI-03 | March 4, 1867 | 3rd term | Left the House in 1873. |
| 28 | James Brooks | D | NY-08 | March 4, 1867 Previous service, 1849–1853 and 1863–1866. | 7th term** | |
| 29 | Benjamin Butler | R | MA-05 | March 4, 1867 | 3rd term | |
| 30 | Roderick R. Butler | R | TN-01 | March 4, 1867 | 3rd term | |
| 31 | John Coburn | R | IN-05 | March 4, 1867 | 3rd term | |
| 32 | James L. Getz | D | PA-08 | March 4, 1867 | 3rd term | Left the House in 1873. |
| 33 | John Hill | R | NJ-04 | March 4, 1867 | 3rd term | Left the House in 1873. |
| 34 | William S. Holman | D | IN-03 | March 4, 1867 Previous service, 1859–1865. | 6th term* | |
| 35 | John A. Peters | R | ME-04 | March 4, 1867 | 3rd term | Left the House in 1873. |
| 36 | Luke P. Poland | R | VT-02 | March 4, 1867 | 3rd term | |
| 37 | John P. C. Shanks | R | IN-09 | March 4, 1867 Previous service, 1861–1863. | 4th term* | |
| 38 | Worthington C. Smith | R | VT-03 | March 4, 1867 | 3rd term | Left the House in 1873. |
| 39 | Henry H. Starkweather | R | CT-03 | March 4, 1867 | 3rd term | |
| 40 | J. Hale Sypher | R | LA-01 | March 4, 1867 | 3rd term | |
| 41 | John Taffe | D | NE | March 4, 1867 | 3rd term | Left the House in 1873. |
| 42 | Ginery Twichell | R | MA-03 | March 4, 1867 | 3rd term | Left the House in 1873. |
| 43 | Philadelph Van Trump | D | OH-12 | March 4, 1867 | 3rd term | Left the House in 1873. |
| 44 | William Williams | R | IN-10 | March 4, 1867 | 3rd term | |
| 45 | John T. Wilson | R | OH-11 | March 4, 1867 | 3rd term | Left the House in 1873. |
| 46 | Fernando Wood | D | NY-09 | March 4, 1867 Previous service, 1841–1843 and 1863–1865. | 5th term** | |
| 47 | James R. McCormick | D | MO-03 | December 17, 1867 | 3rd term | Left the House in 1873. |
| 48 | John Beatty | R | OH-08 | February 5, 1868 | 3rd term | Left the House in 1873. |
| 49 | Charles Waldron Buckley | R | AL-02 | July 21, 1868 | 3rd term | Left the House in 1873. |
| 50 | Oliver J. Dickey | R | PA-09 | December 7, 1868 | 3rd term | Left the House in 1873. |
| 51 | Jacob A. Ambler | R | OH-17 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 52 | Benjamin T. Biggs | D | DE | March 4, 1869 | 2nd term | Left the House in 1873. |
| 53 | John T. Bird | D | NJ-03 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 54 | James Buffington | R | MA-01 | March 4, 1869 Previous service, 1855–1863. | 6th term* | |
| 55 | Samuel S. Burdett | R | MO-05 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 56 | Clinton L. Cobb | R | NC-01 | March 4, 1869 | 2nd term | |
| 57 | Omar D. Conger | R | MI-05 | March 4, 1869 | 2nd term | |
| 58 | Samuel S. Cox | D | NY-06 | March 4, 1869 Previous service, 1857–1865. | 6th term* | Left the House in 1873. |
| 59 | John M. Crebs | D | IL-13 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 60 | Chester Bidwell Darrall | R | LA-03 | March 4, 1869 | 2nd term | |
| 61 | Peter M. Dox | D | AL-05 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 62 | Gustavus A. Finkelnburg | R | MO-02 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 63 | Richard J. Haldeman | D | PA-15 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 64 | Eugene Hale | R | ME-05 | March 4, 1869 | 2nd term | |
| 65 | Samuel Hambleton | D | MD-01 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 66 | John B. Hawley | R | IL-04 | March 4, 1869 | 2nd term | |
| 67 | John B. Hay | D | IL-12 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 68 | Charles Hays | R | AL-04 | March 4, 1869 | 2nd term | |
| 69 | George Frisbie Hoar | R | MA-08 | March 4, 1869 | 2nd term | |
| 70 | Stephen W. Kellogg | R | CT-02 | March 4, 1869 | 2nd term | |
| 71 | George W. McCrary | R | IA-01 | March 4, 1869 | 2nd term | |
| 72 | James McGrew | R | WV-02 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 73 | Thompson W. McNeely | D | IL-09 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 74 | George W. Morgan | D | OH-13 | March 4, 1869 Previous service, 1867–1868. | 3rd term* | Left the House in 1873. |
| 75 | Jesse Hale Moore | R | IL-07 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 76 | Frank Morey | R | LA-05 | March 4, 1869 | 2nd term | |
| 77 | James S. Negley | R | PA-22 | March 4, 1869 | 2nd term | |
| 78 | Jasper Packard | R | IN-11 | March 4, 1869 | 2nd term | |
| 79 | John B. Packer | R | PA-14 | March 4, 1869 | 2nd term | |
| 80 | Francis W. Palmer | R | IA-05 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 81 | Clarkson N. Potter | D | NY-10 | March 4, 1869 | 2nd term | |
| 82 | John M. Rice | D | KY-09 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 83 | Aaron A. Sargent | R | CA-02 | March 4, 1869 Previous service, 1861–1863. | 3rd term* | Left the House in 1873. |
| 84 | Lionel Allen Sheldon | R | LA-02 | March 4, 1869 | 2nd term | |
| 85 | Francis E. Shober | D | NC-06 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 86 | Henry Warner Slocum | D | NY-03 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 87 | John Armstrong Smith | R | OH-06 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 88 | Job E. Stevenson | R | OH-02 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 89 | William L. Stoughton | R | MI-02 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 90 | Julius L. Strong | R | CT-01 | March 4, 1869 | 2nd term | Died on September 7, 1872. |
| 91 | Thomas Swann | D | MD-03 | March 4, 1869 | 2nd term | |
| 92 | Washington Townsend | R | PA-07 | March 4, 1869 | 2nd term | |
| 93 | James N. Tyner | R | IN-08 | March 4, 1869 | 2nd term | |
| 94 | William H. Upson | R | OH-18 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 95 | Daniel W. Voorhees | D | IN-06 | March 4, 1869 Previous service, 1861–1866. | 5th term* | Left the House in 1873. |
| 96 | Erastus Wells | D | MO-01 | March 4, 1869 | 2nd term | |
| 97 | William A. Wheeler | R | NY-17 | March 4, 1869 Previous service, 1861–1863. | 3rd term* | |
| 98 | Charles W. Willard | R | VT-01 | March 4, 1869 | 2nd term | |
| 99 | Boyd Winchester | D | KY-05 | March 4, 1869 | 2nd term | Left the House in 1873. |
| 100 | Leonard Myers | R | PA-03 | April 8, 1869 Previous service, 1863–1869. | 5th term* | |
| 101 | George M. Brooks | R | MA-07 | November 2, 1869 | 2nd term | Resigned on May 13, 1872. |
| 102 | Horatio C. Burchard | R | IL-03 | December 6, 1869 | 2nd term | |
| 103 | Charles H. Porter | R | VA-03 | January 26, 1870 | 2nd term | Left the House in 1873. |
| 104 | James H. Platt Jr. | R | VA-02 | January 27, 1870 | 2nd term | |
| 105 | George E. Harris | R | MS-01 | February 23, 1870 | 2nd term | Left the House in 1873. |
| 106 | George C. McKee | R | MS-04 | February 23, 1870 | 2nd term | |
| 107 | Joseph L. Morphis | R | MS-02 | February 23, 1870 | 2nd term | Left the House in 1873. |
| 108 | Legrand W. Perce | R | MS-05 | February 23, 1870 | 2nd term | Left the House in 1873. |
| 109 | William T. Clark | R | TX-03 | March 30, 1870 | 2nd term | Resigned on May 13, 1872. |
| 110 | John C. Conner | D | TX-02 | March 30, 1870 | 2nd term | Left the House in 1873. |
| 111 | Henry W. Barry | R | MS-03 | April 8, 1870 | 2nd term | |
| 112 | Erasmus D. Peck | R | OH-10 | April 23, 1870 | 2nd term | Left the House in 1873. |
| 113 | Joseph H. Lewis | D | KY-03 | May 10, 1870 | 2nd term | Left the House in 1873. |
| 114 | Alexander S. Wallace | R | SC-04 | May 27, 1870 | 2nd term | |
| 115 | Richard Thomas Walker Duke | D | VA-05 | November 8, 1870 | 2nd term | Left the House in 1873. |
| 116 | Joseph Rainey | R | SC-01 | December 12, 1870 | 2nd term | |
| 117 | William P. Price | D | GA-06 | December 22, 1870 | 2nd term | Left the House in 1873. |
| 118 | Richard H. Whiteley | R | GA-02 | December 22, 1870 | 2nd term | |
| 119 | Pierce M. B. Young | D | GA-07 | December 22, 1870 Previous service, 1868–1869. | 3rd term* | |
| 120 | Ephraim Leister Acker | D | PA-06 | March 4, 1871 | 1st term | Left the House in 1873. |
| 121 | William E. Arthur | D | KY-06 | March 4, 1871 | 1st term | |
| 122 | John T. Averill | R | MN-02 | March 4, 1871 | 1st term | |
| 123 | J. Allen Barber | R | WI-03 | March 4, 1871 | 1st term | |
| 124 | Samuel N. Bell | D | NH-02 | March 4, 1871 | 1st term | Left the House in 1873. |
| 125 | John S. Bigby | R | GA-03 | March 4, 1871 | 1st term | Left the House in 1873. |
| 126 | James G. Blair | R | MO-08 | March 4, 1871 | 1st term | Left the House in 1873. |
| 127 | Elliott M. Braxton | D | VA-07 | March 4, 1871 | 1st term | Left the House in 1873. |
| 128 | John M. Bright | D | TN-04 | March 4, 1871 | 1st term | |
| 129 | Robert P. Caldwell | D | TN-07 | March 4, 1871 | 1st term | Left the House in 1873. |
| 130 | Lewis D. Campbell | D | OH-03 | March 4, 1871 Previous service, 1849–1858. | 6th term* | Left the House in 1873. |
| 131 | John M. Carroll | D | NY-18 | March 4, 1871 | 1st term | Left the House in 1873. |
| 132 | Freeman Clarke | R | NY-28 | March 4, 1871 Previous service, 1863–1865. | 2nd term* | |
| 133 | John M. Coghlan | R | CA-03 | March 4, 1871 | 1st term | Left the House in 1873. |
| 134 | Abram Comingo | D | MO-06 | March 4, 1871 | 1st term | |
| 135 | Aylett R. Cotton | R | IA-02 | March 4, 1871 | 1st term | |
| 136 | John V. Creely | R | PA-02 | March 4, 1871 | 1st term | Left the House in 1873. |
| 137 | John Critcher | D | VA-01 | March 4, 1871 | 1st term | Left the House in 1873. |
| 138 | Edward Crossland | D | KY-01 | March 4, 1871 | 1st term | |
| 139 | Robert C. De Large | R | SC-02 | March 4, 1871 | 1st term | Resigned on January 24, 1873. |
| 140 | John J. Davis | D | WV-01 | March 4, 1871 | 1st term | |
| 141 | William G. Donnan | R | IA-03 | March 4, 1871 | 1st term | |
| 142 | Dudley M. DuBose | D | GA-05 | March 4, 1871 | 1st term | Left the House in 1873. |
| 143 | R. Holland Duell | R | NY-23 | March 4, 1871 Previous service, 1859–1863. | 3rd term* | |
| 144 | Mark H. Dunnell | R | MN-01 | March 4, 1871 | 1st term | |
| 145 | Benjamin T. Eames | R | RI-01 | March 4, 1871 | 1st term | |
| 146 | John Edwards | R | AR-03 | March 4, 1871 | 1st term | Resigned on February 9, 1872. |
| 147 | Robert B. Elliott | R | SC-03 | March 4, 1871 | 1st term | |
| 148 | Smith Ely Jr. | D | NY-07 | March 4, 1871 | 1st term | Left the House in 1873. |
| 149 | Charles B. Farwell | R | IL-01 | March 4, 1871 | 1st term | |
| 150 | Samuel C. Forker | D | NJ-02 | March 4, 1871 | 1st term | Left the House in 1873. |
| 151 | Charles Foster | R | OH-09 | March 4, 1871 | 1st term | Left the House in 1873. |
| 152 | Henry D. Foster | D | PA-21 | March 4, 1871 Previous service, 1843–1847. | 3rd term* | Left the House in 1873. |
| 153 | William P. Frye | R | ME-02 | March 4, 1871 | 1st term | |
| 154 | Abraham E. Garrett | D | TN-03 | March 4, 1871 | 1st term | Left the House in 1873. |
| 155 | Edward I. Golladay | D | TN-05 | March 4, 1871 | 1st term | Left the House in 1873. |
| 156 | Samuel Griffith | D | PA-20 | March 4, 1871 | 1st term | Left the House in 1873. |
| 157 | Milo Goodrich | R | NY-26 | March 4, 1871 | 1st term | Left the House in 1873. |
| 158 | Charles St. John | R | NY-11 | March 4, 1871 | 1st term | |
| 159 | George A. Halsey | R | NJ-05 | March 4, 1871 Previous service, 1867–1869. | 2nd term* | Left the House in 1873. |
| 160 | John Hancock | D | TX-04 | March 4, 1871 | 1st term | |
| 161 | William A. Handley | D | AL-03 | March 4, 1871 | 1st term | Left the House in 1873. |
| 162 | James M. Hanks | D | AR-01 | March 4, 1871 | 1st term | Left the House in 1873. |
| 163 | Alfred C. Harmer | R | PA-05 | March 4, 1871 | 1st term | |
| 164 | James C. Harper | D | NC-07 | March 4, 1871 | 1st term | Left the House in 1873. |
| 165 | John T. Harris | D | VA-06 | March 4, 1871 Previous service, 1859–1861. | 2nd term* | |
| 166 | Harrison E. Havens | R | MO-04 | March 4, 1871 | 1st term | |
| 167 | Gerry Whiting Hazelton | R | WI-02 | March 4, 1871 | 1st term | |
| 168 | John W. Hazelton | R | NJ-01 | March 4, 1871 | 1st term | |
| 169 | Frank Hereford | D | WV-03 | March 4, 1871 | 1st term | |
| 170 | William S. Herndon | D | TX-01 | March 4, 1871 | 1st term | |
| 171 | Ellery Albee Hibbard | D | NH-01 | March 4, 1871 | 1st term | Left the House in 1873. |
| 172 | Sherman Otis Houghton | R | CA-01 | March 4, 1871 | 1st term | |
| 173 | Charles West Kendall | D | NV | March 4, 1871 | 1st term | |
| 174 | John Weinland Killinger | R | PA-10 | March 4, 1871 Previous service, 1859–1863. | 3rd term* | |
| 175 | Andrew King | R | MO-09 | March 4, 1871 | 1st term | Left the House in 1873. |
| 176 | Thomas Kinsella | D | NY-02 | March 4, 1871 | 1st term | Left the House in 1873. |
| 177 | Charles N. Lamison | D | OH-05 | March 4, 1871 | 1st term | |
| 178 | William H. Lamport | R | NY-25 | March 4, 1871 | 1st term | |
| 179 | William E. Lansing | R | NY-22 | March 4, 1871 Previous service, 1861–1863. | 2nd term* | |
| 180 | James M. Leach | D | NC-05 | March 4, 1871 Previous service, 1859–1861. | 2nd term* | |
| 181 | David P. Lowe | R | KS | March 4, 1871 | 1st term | |
| 182 | Archibald T. MacIntyre | D | GA-01 | March 4, 1871 | 1st term | Left the House in 1873. |
| 183 | Mahlon Dickerson Manson | D | IN-07 | March 4, 1871 | 1st term | Left the House in 1873. |
| 184 | James McCleery | R | LA-04 | March 4, 1871 | 1st term | Died on November 5, 1871. |
| 185 | William McClelland | D | PA-24 | March 4, 1871 | 1st term | Left the House in 1873. |
| 186 | Henry D. McHenry | D | KY-02 | March 4, 1871 | 1st term | Left the House in 1873. |
| 187 | Ebenezer McJunkin | R | PA-23 | March 4, 1871 | 1st term | |
| 188 | John F. McKinney | D | OH-04 | March 4, 1871 Previous service, 1863–1865. | 2nd term* | Left the House in 1873. |
| 189 | Clinton L. Merriam | R | NY-20 | March 4, 1871 | 1st term | |
| 190 | William M. Merrick | D | MD-05 | March 4, 1871 | 1st term | Left the House in 1873. |
| 191 | Benjamin F. Meyers | D | PA-16 | March 4, 1871 | 1st term | Left the House in 1873. |
| 192 | Alexander Mitchell | D | WI-01 | March 4, 1871 | 1st term | |
| 193 | James Monroe | R | OH-14 | March 4, 1871 | 1st term | Left the House in 1873. |
| 194 | Jackson Orr | R | IA-06 | March 4, 1871 | 1st term | |
| 195 | Hosea W. Parker | D | NH-03 | March 4, 1871 | 1st term | |
| 196 | Isaac C. Parker | R | MO-07 | March 4, 1871 | 1st term | |
| 197 | James M. Pendleton | R | RI-02 | March 4, 1871 | 1st term | |
| 198 | Aaron F. Perry | R | OH-01 | March 4, 1871 | 1st term | Resigned on July 14, 1872. |
| 199 | Eli Perry | D | NY-14 | March 4, 1871 | 1st term | |
| 200 | Elizur H. Prindle | R | NY-19 | March 4, 1871 | 1st term | Left the House in 1873. |
| 201 | William B. Read | D | KY-04 | March 4, 1871 | 1st term | |
| 202 | Edward Y. Rice | D | IL-10 | March 4, 1871 | 1st term | Left the House in 1873. |
| 203 | John Ritchie | D | MD-04 | March 4, 1871 | 1st term | Left the House in 1873. |
| 204 | Ellis H. Roberts | R | NY-21 | March 4, 1871 | 1st term | |
| 205 | William R. Roberts | D | NY-05 | March 4, 1871 | 1st term | |
| 206 | James C. Robinson | D | IL-08 | March 4, 1871 Previous service, 1859–1865. | 5th term* | |
| 207 | John Rogers | D | NY-16 | March 4, 1871 | 1st term | Left the House in 1873. |
| 208 | Sion H. Rogers | D | NC-04 | March 4, 1871 Previous service, 1853–1855. | 2nd term* | Left the House in 1873. |
| 209 | Robert Roosevelt | D | NY-04 | March 4, 1871 | 1st term | Left the House in 1873. |
| 210 | Jeremiah McLain Rusk | R | WI-06 | March 4, 1871 | 1st term | |
| 211 | John E. Seeley | R | NY-24 | March 4, 1871 | 1st term | Left the House in 1873. |
| 212 | Walter L. Sessions | R | NY-31 | March 4, 1871 | 1st term | |
| 213 | Samuel Shellabarger | R | OH-07 | March 4, 1871 Previous service, 1861–1863 and 1865–1869. | 4th term** | Left the House in 1873. |
| 214 | Henry Sherwood | D | PA-18 | March 4, 1871 | 1st term | Left the House in 1873. |
| 215 | Lazarus D. Shoemaker | R | PA-12 | March 4, 1871 | 1st term | |
| 216 | James H. Slater | D | OR | March 4, 1871 | 1st term | Left the House in 1873. |
| 217 | Joseph H. Sloss | D | AL-06 | March 4, 1871 | 1st term | |
| 218 | Horace B. Smith | R | NY-27 | March 4, 1871 | 1st term | |
| 219 | Oliver P. Snyder | R | AR-02 | March 4, 1871 | 1st term | |
| 220 | Robert M. Speer | D | PA-17 | March 4, 1871 | 1st term | |
| 221 | Thomas J. Speer | R | GA-04 | March 4, 1871 | 1st term | Died on August 18, 1872. |
| 222 | William P. Sprague | R | OH-15 | March 4, 1871 | 1st term | |
| 223 | Bradford N. Stevens | D | IL-05 | March 4, 1871 | 1st term | Left the House in 1873. |
| 224 | John B. Storm | D | PA-11 | March 4, 1871 | 1st term | |
| 225 | William Henry Harrison Stowell | R | VA-04 | March 4, 1871 | 1st term | |
| 226 | Jabez G. Sutherland | D | MI-06 | March 4, 1871 | 1st term | Left the House in 1873. |
| 227 | William Terry | D | VA-08 | March 4, 1871 | 1st term | Left the House in 1873. |
| 228 | Charles R. Thomas | R | NC-02 | March 4, 1871 | 1st term | |
| 229 | Dwight Townsend | D | NY-01 | March 4, 1871 Previous service, 1864–1865. | 2nd term* | Left the House in 1873. |
| 230 | Benjamin S. Turner | R | AL-01 | March 4, 1871 | 1st term | Left the House in 1873. |
| 231 | Joseph H. Tuthill | D | NY-13 | March 4, 1871 | 1st term | Left the House in 1873. |
| 232 | William W. Vaughan | D | TN-08 | March 4, 1871 | 1st term | Left the House in 1873. |
| 233 | Alfred Moore Waddell | D | NC-03 | March 4, 1871 | 1st term | |
| 234 | Seth Wakeman | R | NY-29 | March 4, 1871 | 1st term | Left the House in 1873. |
| 235 | Madison Miner Walden | R | IA-04 | March 4, 1871 | 1st term | Left the House in 1873. |
| 236 | Henry Waldron | R | MI-01 | March 4, 1871 Previous service, 1855–1861. | 4th term* | |
| 237 | Josiah T. Walls | R | FL | March 4, 1871 | 1st term | Resigned on January 29, 1873. |
| 238 | Joseph M. Warren | D | NY-15 | March 4, 1871 | 1st term | Left the House in 1873. |
| 239 | Washington C. Whitthorne | D | TN-06 | March 4, 1871 | 1st term | |
| 240 | William Williams | D | NY-30 | March 4, 1871 | 1st term | Left the House in 1873. |
| 241 | Jeremiah M. Wilson | R | IN-04 | March 4, 1871 | 1st term | |
| John L. Beveridge | R | IL | November 7, 1871 | 1st term | Resigned on January 4, 1873. | |
| Wilder D. Foster | R | MI-04 | December 4, 1871 | 1st term | ||
| Henry Snapp | R | IL-06 | December 4, 1871 | 1st term | Left the House in 1873. | |
| Alvah Crocker | R | MA-09 | January 2, 1872 | 1st term | ||
| Thomas Boles | R | AR-03 | February 9, 1872 Previous service, 1868–1871. | 3rd term* | Left the House in 1873. | |
| Dewitt C. Giddings | D | TX-03 | May 13, 1872 | 1st term | ||
| Ozro J. Dodds | D | OH-01 | October 8, 1872 | 1st term | Left the House in 1873. | |
| Erasmus W. Beck | D | GA-04 | December 2, 1872 | 1st term | Left the House in 1873. | |
| Joseph Roswell Hawley | R | CT-01 | December 2, 1872 | 1st term | ||
| Constantine C. Esty | R | MA-07 | December 2, 1872 | 1st term | Left the House in 1873. | |
| Alexander Boarman | R | LA-04 | December 3, 1872 | 1st term | Left the House in 1873. | |
| Frank C. Bunnell | R | PA-13 | December 24, 1872 | 1st term | Left the House in 1873. | |
| Silas L. Niblack | D | FL | January 29, 1873 | 1st term | Left the House in 1873. | |
| Rank | Delegate | Party | District | Seniority date (previous service, if any) | No. of term(s) | Notes |
|---|---|---|---|---|---|---|
| 1 | William Henry Hooper | D | UT | March 4, 1865 Previous service, 1859–1861. | 5th term* | |
| 2 | Richard Cunningham McCormick | R | AZ | March 4, 1869 | 2nd term | |
| 3 | Selucius Garfielde | R | WA | March 4, 1869 | 2nd term | |
| 4 | Moses K. Armstrong | D | DAK | March 4, 1871 | 1st term | |
| 5 | Jerome B. Chaffee | R | CO | March 4, 1871 | 1st term | |
| 6 | William H. Clagett | R | MT | March 4, 1871 | 1st term | |
| 7 | José Manuel Gallegos | D | NM | March 4, 1871 Previous service, 1853–1856. | 3rd term* | |
| 8 | William Theopilus Jones | R | WY | March 4, 1871 | 1st term | |
| 9 | Samuel Augustus Merritt | D | ID | March 4, 1871 | 1st term | |
| Norton P. Chipman | R | DC | April 21, 1871 | 1st term | ||
This article incorporates public domain material from Biographical Directory of the United States Congress. Federal government of the United States.