This is a complete list of United States representatives during the 45th United States Congress listed by seniority.
As a historical article, the districts and party affiliations listed reflect those during the 45th Congress (March 4, 1877 – March 3, 1879). 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 | William D. Kelley | R | PA-04 | March 4, 1861 | 9th term | Dean of the House |
| 2 | James A. Garfield | R | OH-19 | March 4, 1863 | 8th term | |
| 3 | Samuel J. Randall | D | PA-03 | March 4, 1863 | 8th term | Speaker of the House |
| 4 | Fernando Wood | D | NY-09 | March 4, 1867 Previous service, 1841–1843 and 1863–1865. | 8th term** | |
| 5 | Omar D. Conger | R | MI-07 | March 4, 1869 | 5th term | |
| 6 | Chester Bidwell Darrall | R | LA-03 | March 4, 1869 | 5th term | Resigned on February 20, 1878. |
| 7 | Eugene Hale | R | ME-05 | March 4, 1869 | 5th term | Left the House in 1879. |
| 8 | Thomas Swann | KN | MD-04 | March 4, 1869 | 5th term | Left the House in 1879. |
| 9 | Horatio C. Burchard | R | IL-05 | December 6, 1869 | 5th term | Left the House in 1879. |
| 10 | Joseph Rainey | R | SC-01 | December 12, 1870 | 5th term | Left the House in 1879. |
| 11 | John M. Bright | D | TN-05 | March 4, 1871 | 4th term | |
| 12 | Mark H. Dunnell | R | MN-01 | March 4, 1871 | 4th term | |
| 13 | Benjamin T. Eames | R | RI-01 | March 4, 1871 | 4th term | Left the House in 1879. |
| 14 | Charles Foster | R | OH-10 | March 4, 1871 | 4th term | Left the House in 1879. |
| 15 | William P. Frye | R | ME-02 | March 4, 1871 | 4th term | |
| 16 | John T. Harris | D | VA-07 | March 4, 1871 Previous service, 1859–1861. | 5th term* | |
| 17 | James Monroe | R | OH-18 | March 4, 1871 | 4th term | |
| 18 | Alfred Moore Waddell | D | NC-03 | March 4, 1871 | 4th term | Left the House in 1879. |
| 19 | Washington C. Whitthorne | D | TN-07 | March 4, 1871 | 4th term | |
| 20 | John DeWitt Clinton Atkins | D | TN-08 | March 4, 1873 Previous service, 1857–1859. | 4th term* | |
| 21 | Henry B. Banning | D | OH-02 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 22 | Richard P. Bland | D | MO-05 | March 4, 1873 | 3rd term | |
| 23 | James Henderson Blount | D | GA-06 | March 4, 1873 | 3rd term | |
| 24 | Aylett Hawes Buckner | D | MO-13 | March 4, 1873 | 3rd term | |
| 25 | Joseph Gurney Cannon | R | IL-14 | March 4, 1873 | 3rd term | |
| 26 | John Bullock Clark, Jr. | D | MO-11 | March 4, 1873 | 3rd term | |
| 27 | Hiester Clymer | D | PA-08 | March 4, 1873 | 3rd term | |
| 28 | Philip Cook | D | GA-03 | March 4, 1873 | 3rd term | |
| 29 | Lorenzo Danford | R | OH-16 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 30 | Milton J. Durham | D | KY-08 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 31 | John R. Eden | D | IL-15 | March 4, 1873 Previous service, 1863–1865. | 4th term* | Left the House in 1879. |
| 32 | Greenbury L. Fort | R | IL-08 | March 4, 1873 | 3rd term | |
| 33 | John Montgomery Glover | D | MO-12 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 34 | Benjamin W. Harris | R | MA-02 | March 4, 1873 | 3rd term | |
| 35 | Henry R. Harris | D | GA-04 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 36 | Robert Anthony Hatcher | D | MO-04 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 37 | George Whitman Hendee | R | VT-03 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 38 | Jay Abel Hubbell | R | MI-09 | March 4, 1873 | 3rd term | |
| 39 | Morton C. Hunter | R | IN-08 | March 4, 1873 Previous service, 1867–1869. | 4th term* | Left the House in 1879. |
| 40 | Eppa Hunton | D | VA-08 | March 4, 1873 | 3rd term | |
| 41 | John K. Luttrell | D | CA-03 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 42 | Roger Q. Mills | D | TX-04 | March 4, 1873 | 3rd term | |
| 43 | William Ralls Morrison | D | IL-17 | March 4, 1873 Previous service, 1863–1865. | 4th term* | |
| 44 | Charles O'Neill | R | PA-02 | March 4, 1873 Previous service, 1863–1871. | 7th term* | |
| 45 | Horace F. Page | R | CA-02 | March 4, 1873 | 3rd term | |
| 46 | William A. Phillips | R | KS-01 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 47 | William M. Robbins | D | NC-07 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 48 | Milton Sayler | D | OH-01 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 49 | Abraham Herr Smith | R | PA-09 | March 4, 1873 | 3rd term | |
| 50 | Milton I. Southard | D | OH-13 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 51 | Horace B. Strait | R | MN-02 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 52 | Jacob Montgomery Thornburgh | R | TN-02 | March 4, 1873 | 3rd term | Left the House in 1879. |
| 53 | Robert B. Vance | D | NC-08 | March 4, 1873 | 3rd term | |
| 54 | Charles G. Williams | R | WI-01 | March 4, 1873 | 3rd term | |
| 55 | Samuel S. Cox | D | NY-06 | November 4, 1873 Previous service, 1857–1865 and 1869–1873. | 9th term** | |
| 56 | Alexander H. Stephens | D | GA-08 | December 1, 1873 Previous service, 1843–1859. | 11th term* | |
| 57 | Thomas M. Gunter | D | AR-04 | June 16, 1874 | 3rd term | |
| 58 | Simeon B. Chittenden | R | NY-03 | November 3, 1874 | 3rd term | |
| 59 | George A. Bagley | R | NY-22 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 60 | Latimer Whipple Ballou | R | RI-02 | March 4, 1875 | 2nd term | |
| 61 | John Baker | R | IN-13 | March 4, 1875 | 2nd term | |
| 62 | William H. Baker | R | NY-24 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 63 | Nathaniel P. Banks | R | MA-05 | March 4, 1875 Previous service, 1853–1857 and 1865–1873. | 9th term** | Left the House in 1879. |
| 64 | George M. Beebe | D | NY-14 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 65 | Joseph Clay Stiles Blackburn | D | KY-07 | March 4, 1875 | 2nd term | |
| 66 | Henry W. Blair | R | NH-03 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 67 | Archibald M. Bliss | D | NY-04 | March 4, 1875 | 2nd term | |
| 68 | Andrew Boone | D | KY-01 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 69 | George Cabell | D | VA-05 | March 4, 1875 | 2nd term | |
| 70 | William Parker Caldwell | D | TN-09 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 71 | Milton A. Candler | D | GA-05 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 72 | Lucien B. Caswell | R | WI-02 | March 4, 1875 | 2nd term | |
| 73 | John Blades Clarke | D | KY-10 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 74 | Francis Dolan Collins | D | PA-11 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 75 | David B. Culberson | D | TX-02 | March 4, 1875 | 2nd term | |
| 76 | Augustus W. Cutler | D | NJ-05 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 77 | Joseph J. Davis | D | NC-04 | March 4, 1875 | 2nd term | |
| 78 | Dudley Chase Denison | R | VT-02 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 79 | George Gibbs Dibrell | D | TN-03 | March 4, 1875 | 2nd term | |
| 80 | Beverly B. Douglas | D | VA-01 | March 4, 1875 | 2nd term | Died on December 22, 1878. |
| 81 | E. John Ellis | D | LA-02 | March 4, 1875 | 2nd term | |
| 82 | William Harrell Felton | D | GA-07 | March 4, 1875 | 2nd term | |
| 83 | Benjamin J. Franklin | D | MO-08 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 84 | James La Fayette Evans | R | IN-11 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 85 | William H. Forney | D | AL-07 | March 4, 1875 | 2nd term | |
| 86 | Chapman Freeman | R | PA-01 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 87 | Benoni S. Fuller | D | IN-01 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 88 | Lucien C. Gause | D | AR-01 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 89 | Randall L. Gibson | D | LA-01 | March 4, 1875 | 2nd term | |
| 90 | John Goode | D | VA-02 | March 4, 1875 | 2nd term | |
| 91 | Andrew H. Hamilton | D | IN-12 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 92 | Augustus A. Hardenbergh | D | NJ-07 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 93 | Carter Harrison, Sr. | D | IL-02 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 94 | Julian Hartridge | D | GA-01 | March 4, 1875 | 2nd term | Died on January 8, 1879. |
| 95 | William Hartzell | D | IL-18 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 96 | Thomas J. Henderson | R | IL-06 | March 4, 1875 | 2nd term | |
| 97 | Eli Jones Henkle | D | MD-05 | March 4, 1875 | 2nd term | |
| 98 | Abram Hewitt | D | NY-10 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 99 | Goldsmith W. Hewitt | D | AL-06 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 100 | Charles E. Hooker | D | MS-05 | March 4, 1875 | 2nd term | |
| 101 | John Ford House | D | TN-06 | March 4, 1875 | 2nd term | |
| 102 | Frank Jones | D | NH-01 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 103 | Charles Herbert Joyce | R | VT-01 | March 4, 1875 | 2nd term | |
| 104 | J. Proctor Knott | D | KY-04 | March 4, 1875 Previous service, 1867–1871. | 4th term* | |
| 105 | George M. Landers | D | CT-01 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 106 | Elbridge G. Lapham | R | NY-27 | March 4, 1875 | 2nd term | |
| 107 | George B. Loring | R | MA-06 | March 4, 1875 | 2nd term | |
| 108 | William P. Lynde | D | WI-04 | March 4, 1875 Previous service, 1848–1849. | 3rd term* | Left the House in 1879. |
| 109 | Levi A. Mackey | D | PA-20 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 110 | Levi Maish | D | PA-19 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 111 | John A. McMahon | D | OH-04 | March 4, 1875 | 2nd term | |
| 112 | Hernando Money | D | MS-03 | March 4, 1875 | 2nd term | |
| 113 | Charles H. Morgan | D | MO-06 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 114 | S. Addison Oliver | R | IA-09 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 115 | James Phelps | D | CT-02 | March 4, 1875 | 2nd term | |
| 116 | David Rea | D | MO-09 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 117 | John Henninger Reagan | D | TX-01 | March 4, 1875 Previous service, 1857–1861. | 4th term* | |
| 118 | James Bernard Reilly | D | PA-13 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 119 | Americus V. Rice | D | OH-05 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 120 | Charles Boyle Roberts | D | MD-02 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 121 | Milton S. Robinson | R | IN-06 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 122 | Miles Ross | D | NJ-03 | March 4, 1875 | 2nd term | |
| 123 | Ezekiel S. Sampson | R | IA-06 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 124 | Alfred Moore Scales | D | NC-05 | March 4, 1875 Previous service, 1857–1859. | 3rd term* | |
| 125 | Gustav Schleicher | D | TX-06 | March 4, 1875 | 2nd term | Died on January 10, 1879. |
| 126 | Otho R. Singleton | D | MS-04 | March 4, 1875 Previous service, 1853–1855 and 1857–1861. | 5th term** | |
| 127 | Clement Hall Sinnickson | R | NJ-01 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 128 | William F. Slemons | D | AR-02 | March 4, 1875 | 2nd term | |
| 129 | Robert Smalls | R | SC-05 | March 4, 1875 | 2nd term | |
| 130 | William Ephraim Smith | D | GA-02 | March 4, 1875 | 2nd term | |
| 131 | William Stenger | D | PA-18 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 132 | William A.J. Sparks | D | IL-16 | March 4, 1875 | 2nd term | |
| 133 | William McKendree Springer | D | IL-12 | March 4, 1875 | 2nd term | |
| 134 | James W. Throckmorton | D | TX-03 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 135 | Martin I. Townsend | R | NY-17 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 136 | John R. Tucker | D | VA-06 | March 4, 1875 | 2nd term | |
| 137 | Jacob Turney | D | PA-21 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 138 | Nelson H. Van Vorhes | R | OH-15 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 139 | Gilbert Carlton Walker | D | VA-03 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 140 | William Walsh | D | MD-06 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 141 | Alpheus S. Williams | D | MI-01 | March 4, 1875 | 2nd term | Died on December 21, 1878. |
| 142 | Andrew Williams | R | NY-18 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 143 | James Williams | D | DE | March 4, 1875 | 2nd term | Left the House in 1879. |
| 144 | Jeremiah N. Williams | D | AL-03 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 145 | Benjamin A. Willis | D | NY-11 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 146 | Benjamin Wilson | D | WV-01 | March 4, 1875 | 2nd term | |
| 147 | Jesse Johnson Yeates | D | NC-01 | March 4, 1875 | 2nd term | Left the House in 1879. |
| 148 | H. Casey Young | D | TN-10 | March 4, 1875 | 2nd term | |
| 149 | William W. Crapo | R | MA-01 | November 2, 1875 | 2nd term | |
| 150 | Haywood Yancey Riddle | D | TN-04 | December 14, 1875 | 2nd term | Left the House in 1879. |
| 151 | John T. Wait | R | CT-03 | April 12, 1876 | 2nd term | |
| 152 | James B. Belford | R | CO | October 3, 1876 | 2nd term | Resigned on December 13, 1877. |
| 153 | Levi Warner | D | CT-04 | December 4, 1876 | 2nd term | Left the House in 1879. |
| 154 | William Aldrich | R | IL-01 | March 4, 1877 | 1st term | |
| 155 | D. Wyatt Aiken | D | SC-03 | March 4, 1877 | 1st term | |
| 156 | William J. Bacon | R | NY-23 | March 4, 1877 | 1st term | Left the House in 1879. |
| 157 | Thomas McKee Bayne | R | PA-23 | March 4, 1877 | 1st term | |
| 158 | Charles B. Benedict | D | NY-31 | March 4, 1877 | 1st term | Left the House in 1879. |
| 159 | George A. Bicknell | D | IN-03 | March 4, 1877 | 1st term | |
| 160 | Horatio Bisbee, Jr. | R | FL-02 | March 4, 1877 | 1st term | Resigned on February 20, 1879. |
| 161 | Lorenzo Brentano | R | IL-03 | March 4, 1877 | 1st term | Left the House in 1879. |
| 162 | Gabriel Bouck | D | WI-06 | March 4, 1877 | 1st term | |
| 163 | Thomas A. Boyd | R | IL-09 | March 4, 1877 | 1st term | |
| 164 | Edward S. Bragg | D | WI-05 | March 4, 1877 | 1st term | |
| 165 | Mark S. Brewer | R | MI-06 | March 4, 1877 | 1st term | |
| 166 | Samuel Augustus Bridges | R | PA-10 | March 4, 1877 Previous service, 1848–1849 and 1853–1855. | 3rd term** | Left the House in 1879. |
| 167 | James Frankland Briggs | R | NH-02 | March 4, 1877 | 1st term | |
| 168 | Curtis Hooks Brogden | R | NC-02 | March 4, 1877 | 1st term | Left the House in 1879. |
| 169 | Thomas M. Browne | R | IN-05 | March 4, 1877 | 1st term | |
| 170 | Solomon Bundy | R | NY-21 | March 4, 1877 | 1st term | Left the House in 1879. |
| 171 | Theodore Weld Burdick | R | IA-03 | March 4, 1877 | 1st term | Left the House in 1879. |
| 172 | Benjamin F. Butler | R | MA-07 | March 4, 1877 Previous service, 1867–1875. | 5th term* | Left the House in 1879. |
| 173 | John W. Caldwell | D | KY-03 | March 4, 1877 | 1st term | |
| 174 | William H. Calkins | R | IN-10 | March 4, 1877 | 1st term | |
| 175 | Jacob Miller Campbell | R | PA-17 | March 4, 1877 | 1st term | Left the House in 1879. |
| 176 | Richard H. Cain | R | SC-02 | March 4, 1877 Previous service, 1873–1875. | 2nd term* | Left the House in 1879. |
| 177 | John H. Camp | R | NY-26 | March 4, 1877 | 1st term | |
| 178 | John G. Carlisle | D | KY-06 | March 4, 1877 | 1st term | |
| 179 | James Ronald Chalmers | D | MS-06 | March 4, 1877 | 1st term | |
| 180 | William Claflin | R | MA-08 | March 4, 1877 | 1st term | |
| 181 | Alvah A. Clark | D | NJ-04 | March 4, 1877 | 1st term | |
| 182 | Rush Clark | R | IA-05 | March 4, 1877 | 1st term | |
| 183 | Thomas R. Cobb | D | IN-02 | March 4, 1877 | 1st term | |
| 184 | Nathan Cole | R | MO-02 | March 4, 1877 | 1st term | Left the House in 1879. |
| 185 | James W. Covert | D | NY-01 | March 4, 1877 | 1st term | |
| 186 | Jacob Dolson Cox | R | OH-06 | March 4, 1877 | 1st term | Left the House in 1879. |
| 187 | Jordan E. Cravens | D | AR-03 | March 4, 1877 | 1st term | |
| 188 | Thomas Theodore Crittenden | D | MO-07 | March 4, 1877 Previous service, 1873–1875. | 2nd term* | Left the House in 1879. |
| 189 | Henry J.B. Cummings | R | IA-07 | March 4, 1877 | 1st term | Left the House in 1879. |
| 190 | Nathaniel Cobb Deering | R | IA-04 | March 4, 1877 | 1st term | |
| 191 | Robert H. M. Davidson | D | FL-01 | March 4, 1877 | 1st term | |
| 192 | Horace Davis | R | CA-01 | March 4, 1877 | 1st term | |
| 193 | Henry L. Dickey | D | OH-07 | March 4, 1877 | 1st term | |
| 194 | Jeremiah W. Dwight | R | NY-28 | March 4, 1877 | 1st term | |
| 195 | Anthony Eickhoff | D | NY-07 | March 4, 1877 | 1st term | Left the House in 1879. |
| 196 | Joseph Barton Elam | D | LA-04 | March 4, 1877 | 1st term | |
| 197 | Charles C. Ellsworth | R | MI-08 | March 4, 1877 | 1st term | Left the House in 1879. |
| 198 | Russell Errett | R | PA-22 | March 4, 1877 | 1st term | |
| 199 | Isaac Newton Evans | R | PA-07 | March 4, 1877 | 1st term | Left the House in 1879. |
| 200 | John H. Evins | D | SC-04 | March 4, 1877 | 1st term | |
| 201 | Thomas Ewing, Jr. | D | OH-12 | March 4, 1877 | 1st term | |
| 202 | Walbridge A. Field | R | MA-03 | March 4, 1877 | 1st term | Resigned on March 28, 1878. |
| 203 | Ebenezer B. Finley | D | OH-14 | March 4, 1877 | 1st term | |
| 204 | Mills Gardner | R | OH-03 | March 4, 1877 | 1st term | Left the House in 1879. |
| 205 | William Willis Garth | D | AL-08 | March 4, 1877 | 1st term | Left the House in 1879. |
| 206 | Dewitt Clinton Giddings | D | TX-05 | March 4, 1877 Previous service, 1872–1875. | 3rd term* | Left the House in 1879. |
| 207 | Alfred C. Harmer | R | PA-05 | March 4, 1877 Previous service, 1871–1875. | 3rd term* | |
| 208 | John Hanna | R | IN-07 | March 4, 1877 | 1st term | Left the House in 1879. |
| 209 | Elizur K. Hart | D | NY-30 | March 4, 1877 | 1st term | Left the House in 1879. |
| 210 | Dudley C. Haskell | R | KS-02 | March 4, 1877 | 1st term | |
| 211 | Philip C. Hayes | R | IL-07 | March 4, 1877 | 1st term | |
| 212 | George Cochrane Hazelton | R | WI-03 | March 4, 1877 | 1st term | |
| 213 | Daniel Maynadier Henry | D | MD-01 | March 4, 1877 | 1st term | |
| 214 | Hilary A. Herbert | D | AL-02 | March 4, 1877 | 1st term | |
| 215 | Frank Hiscock | R | NY-25 | March 4, 1877 | 1st term | |
| 216 | Herman L. Humphrey | R | WI-07 | March 4, 1877 | 1st term | |
| 217 | John N. Hungerford | R | NY-29 | March 4, 1877 | 1st term | Left the House in 1879. |
| 218 | Anthony F. Ittner | R | MO-01 | March 4, 1877 | 1st term | Left the House in 1879. |
| 219 | Amaziah B. James | R | NY-19 | March 4, 1877 | 1st term | |
| 220 | James T. Jones | D | AL-01 | March 4, 1877 | 1st term | Left the House in 1879. |
| 221 | John S. Jones | R | OH-09 | March 4, 1877 | 1st term | Left the House in 1879. |
| 222 | Joseph Jorgensen | R | VA-04 | March 4, 1877 | 1st term | |
| 223 | J. Warren Keifer | R | OH-08 | March 4, 1877 | 1st term | |
| 224 | Edwin W. Keightley | R | MI-04 | March 4, 1877 | 1st term | Left the House in 1879. |
| 225 | John E. Kenna | D | WV-03 | March 4, 1877 | 1st term | |
| 226 | John H. Ketcham | R | NY-13 | March 4, 1877 Previous service, 1865–1873. | 5th term* | |
| 227 | John Weinland Killinger | R | PA-14 | March 4, 1877 Previous service, 1859–1863 and 1871–1875. | 5th term** | |
| 228 | William Kimmel | D | MD-03 | March 4, 1877 | 1st term | |
| 229 | Robert M. Knapp | D | IL-11 | March 4, 1877 Previous service, 1873–1875. | 2nd term* | Left the House in 1879. |
| 230 | William Lathrop | R | IL-04 | March 4, 1877 | 1st term | Left the House in 1879. |
| 231 | John E. Leonard | R | LA-05 | March 4, 1877 | 1st term | Died on March 15, 1878. |
| 232 | Robert F. Ligon | D | AL-05 | March 4, 1877 | 1st term | Left the House in 1879. |
| 233 | Stephen Lindsey | R | ME-03 | March 4, 1877 | 1st term | |
| 234 | Daniel N. Lockwood | D | NY-32 | March 4, 1877 | 1st term | Left the House in 1879. |
| 235 | Van H. Manning | D | MS-02 | March 4, 1877 | 1st term | |
| 236 | Benjamin F. Marsh | R | IL-10 | March 4, 1877 | 1st term | |
| 237 | Benjamin F. Martin | D | WV-02 | March 4, 1877 | 1st term | |
| 238 | Stephen L. Mayham | D | NY-15 | March 4, 1877 Previous service, 1869–1871. | 2nd term* | Left the House in 1879. |
| 239 | Anson G. McCook | R | NY-08 | March 4, 1877 | 1st term | |
| 240 | Jonas H. McGowan | R | MI-03 | March 4, 1877 | 1st term | |
| 241 | James A. McKenzie | D | KY-02 | March 4, 1877 | 1st term | |
| 242 | William McKinley | R | OH-17 | March 4, 1877 | 1st term | |
| 243 | Lyne Metcalfe | R | MO-03 | March 4, 1877 | 1st term | Left the House in 1879. |
| 244 | John I. Mitchell | R | PA-16 | March 4, 1877 | 1st term | |
| 245 | Leopold Morse | D | MA-04 | March 4, 1877 | 1st term | |
| 246 | Henry L. Muldrow | D | MS-01 | March 4, 1877 | 1st term | |
| 247 | Nicholas Muller | D | NY-05 | March 4, 1877 | 1st term | |
| 248 | Henry S. Neal | R | OH-11 | March 4, 1877 | 1st term | |
| 249 | Amasa Norcross | R | MA-10 | March 4, 1877 | 1st term | |
| 250 | Edward Overton, Jr. | R | PA-15 | March 4, 1877 | 1st term | |
| 251 | Romualdo Pacheco | R | CA-04 | March 4, 1877 | 1st term | Resigned on February 7, 1878. |
| 252 | George W. Patterson | R | NY-33 | March 4, 1877 | 1st term | Left the House in 1879. |
| 253 | Thomas Baldwin Peddie | R | NJ-06 | March 4, 1877 | 1st term | Left the House in 1879. |
| 254 | Henry Moses Pollard | R | MO-10 | March 4, 1877 | 1st term | Left the House in 1879. |
| 255 | Clarkson Nott Potter | D | NY-12 | March 4, 1877 Previous service, 1869–1875. | 4th term* | Left the House in 1879. |
| 256 | Thaddeus C. Pound | R | WI-08 | March 4, 1877 | 1st term | |
| 257 | Llewellyn Powers | R | ME-04 | March 4, 1877 | 1st term | Left the House in 1879. |
| 258 | Hiram Price | R | IA-02 | March 4, 1877 Previous service, 1863–1869. | 4th term* | |
| 259 | Auburn Pridemore | D | VA-09 | March 4, 1877 | 1st term | Left the House in 1879. |
| 260 | John H. Pugh | R | NJ-02 | March 4, 1877 | 1st term | Left the House in 1879. |
| 261 | Terence J. Quinn | D | NY-16 | March 4, 1877 | 1st term | Died on June 18, 1878. |
| 262 | James Henry Randolph | R | TN-01 | March 4, 1877 | 1st term | Left the House in 1879. |
| 263 | William W. Rice | R | MA-09 | March 4, 1877 | 1st term | |
| 264 | Edward White Robertson | D | LA-06 | March 4, 1877 | 1st term | |
| 265 | Thomas Ryan | R | KS-03 | March 4, 1877 | 1st term | |
| 266 | William Fletcher Sapp | R | IA-08 | March 4, 1877 | 1st term | |
| 267 | Leonidas Sexton | R | IN-04 | March 4, 1877 | 1st term | Left the House in 1879. |
| 268 | William Shadrack Shallenberger | R | PA-24 | March 4, 1877 | 1st term | |
| 269 | Charles M. Shelley | D | AL-04 | March 4, 1877 | 1st term | |
| 270 | John H. Starin | R | NY-20 | March 4, 1877 | 1st term | |
| 271 | Walter Leak Steele | D | NC-06 | March 4, 1877 | 1st term | |
| 272 | Jacob H. Stewart | R | MN-03 | March 4, 1877 | 1st term | Left the House in 1879. |
| 273 | John W. Stone | R | MI-05 | March 4, 1877 | 1st term | |
| 274 | Joseph C. Stone | R | IA-01 | March 4, 1877 | 1st term | Left the House in 1879. |
| 275 | Thomas F. Tipton | R | IL-13 | March 4, 1877 | 1st term | Left the House in 1879. |
| 276 | John M. Thompson | R | PA-26 | March 4, 1877 Previous service, 1874–1875. | 2nd term* | Left the House in 1879. |
| 277 | Amos Townsend | R | OH-20 | March 4, 1877 | 1st term | |
| 278 | Richard W. Townshend | D | IL-19 | March 4, 1877 | 1st term | |
| 279 | Thomas Turner | D | KY-09 | March 4, 1877 | 1st term | |
| 280 | William D. Veeder | D | NY-02 | March 4, 1877 | 1st term | Left the House in 1879. |
| 281 | Thomas Brackett Reed | R | ME-01 | March 4, 1877 | 1st term | |
| 282 | George D. Robinson | R | MA-11 | March 4, 1877 | 1st term | |
| 283 | Lewis Findlay Watson | R | PA-27 | March 4, 1877 | 1st term | Left the House in 1879. |
| 284 | William Ward | R | PA-06 | March 4, 1877 | 1st term | |
| 285 | Frank Welch | R | NE | March 4, 1877 | 1st term | Died on September 4, 1878. |
| 286 | Harry White | R | PA-25 | March 4, 1877 | 1st term | |
| 287 | Michael D. White | R | IN-09 | March 4, 1877 | 1st term | Left the House in 1879. |
| 288 | Richard Williams | R | OR | March 4, 1877 | 1st term | Left the House in 1879. |
| 289 | Albert S. Willis | D | KY-05 | March 4, 1877 | 1st term | |
| 290 | Edwin Willits | R | MI-02 | March 4, 1877 | 1st term | |
| 291 | Thomas Wren | R | NV | March 4, 1877 | 1st term | Left the House in 1879. |
| 292 | Hendrick Bradley Wright | D | PA-12 | March 4, 1877 Previous service, 1853–1855 and 1861–1863. | 3rd term** | |
| Hiram Parks Bell | D | GA-09 | March 13, 1877 Previous service, 1873–1875. | 2nd term* | Left the House in 1879. | |
| Thomas M. Patterson | D | CO | December 13, 1877 Previous service, 1875–1876. | 2nd term* | Left the House in 1879. | |
| Peter D. Wigginton | D | CA-04 | February 7, 1878 Previous service, 1875–1877. | 2nd term* | Left the House in 1879. | |
| Joseph H. Acklen | D | LA-03 | February 20, 1878 | 1st term | ||
| Benjamin Dean | D | MA-03 | March 28, 1878 | 1st term | Left the House in 1879. | |
| John Mosher Bailey | R | NY-16 | November 5, 1878 | 1st term | ||
| Thomas Jefferson Majors | R | NE | November 5, 1878 | 1st term | Left the House in 1879. | |
| J. Smith Young | D | LA-05 | November 5, 1878 | 1st term | Left the House in 1879. | |
| Richard L.T. Beale | D | VA-01 | January 23, 1879 Previous service, 1847–1849. | 2nd term* | ||
| William Bennett Fleming | D | GA-01 | February 10, 1879 | 1st term | Left the House in 1879. | |
| Jesse J. Finley | D | FL-02 | February 20, 1879 Previous service, 1876–1877. | 2nd term* | Left the House in 1879. | |
| Rank | Delegate | Party | District | Seniority date (Previous service, if any) | No.# of term(s) | Notes |
|---|---|---|---|---|---|---|
| 1 | George Q. Cannon | R | UT | March 4, 1873 | 3rd term | |
| 2 | Martin Maginnis | D | MT | March 4, 1873 | 3rd term | |
| 3 | Orange Jacobs | R | WA | March 4, 1875 | 2nd term | |
| 4 | Jefferson P. Kidder | R | DAK | March 4, 1875 | 2nd term | |
| 5 | Hiram Sanford Stevens | D | AZ | March 4, 1875 | 2nd term | |
| 6 | Stephen Southmyd Fenn | D | ID | June 23, 1876 | 2nd term | |
| 7 | Trinidad Romero | R | NM | March 4, 1877 | 1st term | |
| 8 | William Wellington Corlett | R | WY | March 4, 1877 | 1st term | |
This article incorporates public domain material from Biographical Directory of the United States Congress. Federal government of the United States.