This is a complete list of United States representatives during the 39th United States Congress listed by seniority.
As an historical article, the districts and party affiliations listed reflect those during the 39th Congress (March 4, 1865 – March 3, 1867). 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 | Elihu B. Washburne | R | IL-03 | March 4, 1853 | 7th term | Dean of the House |
| 2 | Schuyler Colfax | R | IN-09 | March 4, 1855 | 6th term | Speaker of the House |
| 3 | Justin S. Morrill | R | VT-02 | March 4, 1855 | 6th term | Left the House in 1867. |
| 4 | Henry L. Dawes | R | MA-10 | March 4, 1857 | 5th term | |
| 5 | Daniel W. Gooch | R | MA-06 | January 31, 1858 | 5th term | Resigned on September 1, 1865. |
| 6 | John B. Alley | R | MA-05 | March 4, 1859 | 4th term | Left the House in 1867. |
| 7 | James M. Ashley | R | OH-10 | March 4, 1859 | 4th term | |
| 8 | Thomas D. Eliot | R | MA-01 | March 4, 1859 Previous service, 1854–1855. | 5th term* | |
| 9 | James K. Moorhead | R | PA-22 | March 4, 1859 | 4th term | |
| 10 | Alexander H. Rice | R | MA-03 | March 4, 1859 | 4th term | Left the House in 1867. |
| 11 | Thaddeus Stevens | R | PA-09 | March 4, 1859 Previous service, 1849–1853. | 6th term* | |
| 12 | Edwin Hanson Webster | UU | MD-02 | March 4, 1859 | 4th term | Resigned in July 1865. |
| 13 | William Windom | R | MN-01 | March 4, 1859 | 4th term | |
| 14 | Sydenham E. Ancona | D | PA-08 | March 4, 1861 | 3rd term | Left the House in 1867. |
| 15 | Portus Baxter | R | VT-03 | March 4, 1861 | 3rd term | Left the House in 1867. |
| 16 | Fernando C. Beaman | R | MI-01 | March 4, 1861 | 3rd term | |
| 17 | Henry Grider | D | KY-03 | March 4, 1861 Previous service, 1843–1847. | 5th term* | Died on September 7, 1866. |
| 18 | Aaron Harding | R | KY-04 | March 4, 1861 | 3rd term | Left the House in 1867. |
| 19 | Philip Johnson | D | PA-11 | March 4, 1861 | 3rd term | Died on January 29, 1867. |
| 20 | George W. Julian | R | IN-05 | March 4, 1861 Previous service, 1849–1851. | 4th term* | |
| 21 | William D. Kelley | R | PA-04 | March 4, 1861 | 3rd term | |
| 22 | Frederick A. Pike | R | ME-05 | March 4, 1861 | 3rd term | |
| 23 | Theodore M. Pomeroy | R | NY-24 | March 4, 1861 | 3rd term | |
| 24 | John H. Rice | R | ME-04 | March 4, 1861 | 3rd term | Left the House in 1867. |
| 25 | Edward H. Rollins | R | NH-02 | March 4, 1861 | 3rd term | Left the House in 1867. |
| 26 | Francis Thomas | UU | MD-04 | March 4, 1861 Previous service, 1831–1841. | 8th term* | |
| 27 | Daniel W. Voorhees | D | IN-07 | March 4, 1861 | 3rd term | Resigned on February 23, 1866. |
| 28 | James F. Wilson | R | IA-01 | October 8, 1861 | 3rd term | |
| 29 | Samuel Hooper | R | MA-04 | December 2, 1861 | 3rd term | |
| 30 | Walter D. McIndoe | R | WI-06 | January 26, 1863 | 3rd term | Left the House in 1867. |
| 31 | William B. Allison | R | IA-03 | March 4, 1863 | 2nd term | |
| 32 | Oakes Ames | R | MA-02 | March 4, 1863 | 2nd term | |
| 33 | John D. Baldwin | R | MA-08 | March 4, 1863 | 2nd term | |
| 34 | James G. Blaine | R | ME-03 | March 4, 1863 | 2nd term | |
| 35 | Henry T. Blow | R | MO-02 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 36 | George S. Boutwell | R | MA-07 | March 4, 1863 | 2nd term | |
| 37 | Augustus Brandegee | R | CT-03 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 38 | James Brooks | D | NY-08 | March 4, 1863 Previous service, 1849–1853. | 4th term* | Unseated on April 7, 1866. |
| 39 | John Martin Broomall | R | PA-07 | March 4, 1863 | 2nd term | |
| 40 | John W. Chanler | D | NY-07 | March 4, 1863 | 2nd term | |
| 41 | Amasa Cobb | R | WI-03 | March 4, 1863 | 2nd term | |
| 42 | Thomas T. Davis | R | NY-23 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 43 | John L. Dawson | D | PA-21 | March 4, 1863 Previous service, 1851–1855. | 4th term* | Left the House in 1867. |
| 44 | Henry C. Deming | R | CT-01 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 45 | Charles Denison | D | PA-12 | March 4, 1863 | 2nd term | |
| 46 | Nathan F. Dixon II | R | RI-02 | March 4, 1863 Previous service, 1849–1851. | 3rd term* | |
| 47 | Ignatius L. Donnelly | R | MN-02 | March 4, 1863 | 2nd term | |
| 48 | John F. Driggs | R | MI-06 | March 4, 1863 | 2nd term | |
| 49 | Ebenezer Dumont | R | IN-06 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 50 | Ephraim R. Eckley | R | OH-17 | March 4, 1863 | 2nd term | |
| 51 | Charles A. Eldredge | D | WI-04 | March 4, 1863 | 2nd term | |
| 52 | John F. Farnsworth | R | IL-02 | March 4, 1863 Previous service, 1857–1861. | 4th term* | |
| 53 | William E. Finck | D | OH-12 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 54 | James A. Garfield | R | OH-19 | March 4, 1863 | 2nd term | |
| 55 | Josiah B. Grinnell | R | IA-04 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 56 | John A. Griswold | R | NY-15 | March 4, 1863 | 2nd term | |
| 57 | Benjamin Gwinn Harris | D | MD-05 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 58 | William Higby | R | CA-02 | March 4, 1863 | 2nd term | |
| 59 | Giles W. Hotchkiss | R | NY-26 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 60 | Asahel W. Hubbard | R | IA-06 | March 4, 1863 | 2nd term | |
| 61 | John H. Hubbard | R | CT-04 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 62 | Calvin T. Hulburd | R | NY-17 | March 4, 1863 | 2nd term | |
| 63 | Thomas Jenckes | R | RI-01 | March 4, 1863 | 2nd term | |
| 64 | John A. Kasson | R | IA-05 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 65 | Orlando Kellogg | R | NY-16 | March 4, 1863 Previous service, 1847–1849. | 3rd term* | Died on August 24, 1865. |
| 66 | Francis Celeste Le Blond | D | OH-05 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 67 | Benjamin F. Loan | R | MO-07 | March 4, 1863 | 2nd term | |
| 68 | John W. Longyear | R | MI-03 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 69 | James M. Marvin | R | NY-18 | March 4, 1863 | 2nd term | |
| 70 | Joseph W. McClurg | R | MO-05 | March 4, 1863 | 2nd term | |
| 71 | Daniel Morris | R | NY-25 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 72 | Leonard Myers | R | PA-03 | March 4, 1863 | 2nd term | |
| 73 | Charles O'Neill | R | PA-02 | March 4, 1863 | 2nd term | |
| 74 | Godlove Stein Orth | R | IN-08 | March 4, 1863 | 2nd term | |
| 75 | James W. Patterson | R | NH-03 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 76 | Sidney Perham | R | ME-02 | March 4, 1863 | 2nd term | |
| 77 | Hiram Price | R | IA-02 | March 4, 1863 | 2nd term | |
| 78 | William Radford | D | NY-10 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 79 | Samuel J. Randall | D | PA-01 | March 4, 1863 | 2nd term | |
| 80 | William H. Randall | UU | KY-08 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 81 | Andrew J. Rogers | D | NJ-04 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 82 | Lewis Winans Ross | D | IL-09 | March 4, 1863 | 2nd term | |
| 83 | Robert C. Schenck | R | OH-03 | March 4, 1863 Previous service, 1843–1851. | 6th term* | |
| 84 | Glenni W. Scofield | R | PA-19 | March 4, 1863 | 2nd term | |
| 85 | Ithamar Sloan | R | WI-02 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 86 | Green C. Smith | UU | KY-06 | March 4, 1863 | 2nd term | Resigned in July 1866. |
| 87 | Rufus P. Spalding | R | OH-18 | March 4, 1863 | 2nd term | |
| 88 | John F. Starr | R | NJ-01 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 89 | Myer Strouse | D | PA-10 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 90 | Martin R. Thayer | R | PA-05 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 91 | Charles Upson | R | MI-02 | March 4, 1863 | 2nd term | |
| 92 | William B. Washburn | R | MA-09 | March 4, 1863 | 2nd term | |
| 93 | Thomas Williams | R | PA-23 | March 4, 1863 | 2nd term | |
| 94 | Charles H. Winfield | D | NY-11 | March 4, 1863 | 2nd term | Left the House in 1867. |
| 95 | Frederick E. Woodbridge | R | VT-01 | March 4, 1863 | 2nd term | |
| 96 | Kellian Whaley | U | WV-03 | December 7, 1863 Previous service, 1861–1863. | 3rd term* | Left the House in 1867. |
| 97 | Ebon C. Ingersoll | R | IL-05 | May 20, 1864 | 2nd term | |
| 98 | George W. Anderson | R | MO-09 | March 4, 1865 | 1st term | |
| 99 | Delos R. Ashley | R | NV | March 4, 1865 | 1st term | |
| 100 | Jehu Baker | R | IL-12 | March 4, 1865 | 1st term | |
| 101 | Abraham Andrews Barker | R | PA-17 | March 4, 1865 | 1st term | Left the House in 1867. |
| 102 | John F. Benjamin | R | MO-08 | March 4, 1865 | 1st term | |
| 103 | Teunis G. Bergen | D | NY-02 | March 4, 1865 | 1st term | Left the House in 1867. |
| 104 | John Bidwell | R | CA-03 | March 4, 1865 | 1st term | Left the House in 1867. |
| 105 | John Bingham | R | OH-16 | March 4, 1865 Previous service, 1855–1863. | 5th term* | |
| 106 | Benjamin M. Boyer | D | PA-06 | March 4, 1865 | 1st term | |
| 107 | Henry P. H. Bromwell | R | IL-07 | March 4, 1865 | 1st term | |
| 108 | Ralph P. Buckland | R | OH-09 | March 4, 1865 | 1st term | |
| 109 | Hezekiah S. Bundy | R | OH-11 | March 4, 1865 | 1st term | Left the House in 1867. |
| 110 | Reader W. Clarke | D | OH-06 | March 4, 1865 | 1st term | |
| 111 | Sidney Clarke | R | KS | March 4, 1865 | 1st term | |
| 112 | Roscoe Conkling | R | NY-21 | March 4, 1865 Previous service, 1859–1863. | 3rd term* | Left the House in 1867. |
| 113 | Burton C. Cook | R | IL-06 | March 4, 1865 | 1st term | |
| 114 | Shelby M. Cullom | R | IL-08 | March 4, 1865 | 1st term | |
| 115 | Charles Vernon Culver | R | PA-20 | March 4, 1865 | 1st term | Left the House in 1867. |
| 116 | William A. Darling | R | NY-09 | March 4, 1865 | 1st term | Left the House in 1867. |
| 117 | Joseph H. Defrees | R | IN-10 | March 4, 1865 | 1st term | Left the House in 1867. |
| 118 | Columbus Delano | R | OH-13 | March 4, 1865 Previous service, 1845–1847. | 2nd term* | Left the House in 1867. |
| 119 | James H. D. Henderson | R | OR | March 4, 1865 | 1st term | Left the House in 1867. |
| 120 | Benjamin Eggleston | R | OH-01 | March 4, 1865 | 1st term | |
| 121 | John H. Farquhar | R | IN-04 | March 4, 1865 | 1st term | Left the House in 1867. |
| 122 | Thomas W. Ferry | R | MI-04 | March 4, 1865 | 1st term | |
| 123 | Adam J. Glossbrenner | D | PA-15 | March 4, 1865 | 1st term | |
| 124 | Charles Goodyear | D | NY-14 | March 4, 1865 Previous service, 1845–1847. | 2nd term* | Left the House in 1867. |
| 125 | Abner C. Harding | R | IL-04 | March 4, 1865 | 1st term | |
| 126 | Roswell Hart | R | NY-28 | March 4, 1865 | 1st term | Left the House in 1867. |
| 127 | Rutherford B. Hayes | R | OH-02 | March 4, 1865 | 1st term | |
| 128 | Ralph Hill | R | IN-03 | March 4, 1865 | 1st term | Left the House in 1867. |
| 129 | John Hogan | D | MO-01 | March 4, 1865 | 1st term | Left the House in 1867. |
| 130 | Sidney T. Holmes | R | NY-22 | March 4, 1865 | 1st term | Left the House in 1867. |
| 131 | Chester D. Hubbard | U | WV-01 | March 4, 1865 | 1st term | |
| 132 | Demas Hubbard, Jr. | R | NY-19 | March 4, 1865 | 1st term | Left the House in 1867. |
| 133 | Edwin N. Hubbell | D | NY-13 | March 4, 1865 | 1st term | Left the House in 1867. |
| 134 | James Randolph Hubbell | R | OH-08 | March 4, 1865 | 1st term | Left the House in 1867. |
| 135 | James Humphrey | R | NY-03 | March 4, 1865 Previous service, 1859–1861. | 2nd term* | Died on June 16, 1866. |
| 136 | James M. Humphrey | D | NY-30 | March 4, 1865 | 1st term | |
| 137 | Morgan Jones | D | NY-04 | March 4, 1865 | 1st term | Left the House in 1867. |
| 138 | John R. Kelso | R | MO-04 | March 4, 1865 | 1st term | Left the House in 1867. |
| 139 | Michael C. Kerr | D | IN-02 | March 4, 1865 | 1st term | |
| 140 | Andrew J. Kuykendall | R | IL-13 | March 4, 1865 | 1st term | Left the House in 1867. |
| 141 | John H. Ketcham | R | NY-12 | March 4, 1865 | 1st term | |
| 142 | Addison H. Laflin | R | NY-20 | March 4, 1865 | 1st term | |
| 143 | George R. Latham | U | WV-02 | March 4, 1865 | 1st term | Left the House in 1867. |
| 144 | George Van Eman Lawrence | R | PA-24 | March 4, 1865 | 1st term | |
| 145 | William Lawrence | R | OH-04 | March 4, 1865 | 1st term | |
| 146 | John Lynch | R | ME-01 | March 4, 1865 | 1st term | |
| 147 | Samuel S. Marshall | D | IL-11 | March 4, 1865 Previous service, 1855–1859. | 3rd term* | |
| 148 | Gilman Marston | R | NH-01 | March 4, 1865 Previous service, 1859–1863. | 3rd term* | Left the House in 1867. |
| 149 | Ulysses Mercur | R | PA-13 | March 4, 1865 | 1st term | |
| 150 | Hiram McCullough | D | MD-01 | March 4, 1865 | 1st term | |
| 151 | Samuel McKee | UU | KY-09 | March 4, 1865 | 1st term | Left the House in 1867. |
| 152 | Donald C. McRuer | R | CA-01 | March 4, 1865 | 1st term | Left the House in 1867. |
| 153 | George F. Miller | R | PA-14 | March 4, 1865 | 1st term | |
| 154 | Samuel W. Moulton | R | IL | March 4, 1865 | 1st term | Left the House in 1867. |
| 155 | William A. Newell | R | NJ-02 | March 4, 1865 Previous service, 1847–1851. | 3rd term* | Left the House in 1867. |
| 156 | William E. Niblack | D | IN-01 | March 4, 1865 Previous service, 1857–1861. | 3rd term* | |
| 157 | John A. Nicholson | D | DE | March 4, 1865 | 1st term | |
| 158 | Thomas E. Noell | R | MO-03 | March 4, 1865 | 1st term | |
| 159 | Halbert E. Paine | R | WI-01 | March 4, 1865 | 1st term | |
| 160 | Charles E. Phelps | UU | MD-03 | March 4, 1865 | 1st term | |
| 161 | Tobias A. Plants | R | OH-15 | March 4, 1865 | 1st term | |
| 162 | Henry J. Raymond | R | NY-06 | March 4, 1865 | 1st term | Left the House in 1867. |
| 163 | Burwell C. Ritter | D | KY-02 | March 4, 1865 | 1st term | Left the House in 1867. |
| 164 | Lovell Rousseau | UU | KY-05 | March 4, 1865 | 1st term | Resigned on July 21, 1866. Returned to the House on December 3, 1866. Left the House in 1867. |
| 165 | Philetus Sawyer | R | WI-05 | March 4, 1865 | 1st term | |
| 166 | George S. Shanklin | D | KY-07 | March 4, 1865 | 1st term | Left the House in 1867. |
| 167 | Samuel Shellabarger | R | OH-07 | March 4, 1865 Previous service, 1861–1863. | 2nd term* | |
| 168 | Charles Sitgreaves | D | NJ-03 | March 4, 1865 | 1st term | |
| 169 | Thomas N. Stilwell | R | IN-11 | March 4, 1865 | 1st term | Left the House in 1867. |
| 170 | Stephen Taber | D | NY-01 | March 4, 1865 | 1st term | |
| 171 | Nelson Taylor | D | NY-05 | March 4, 1865 | 1st term | Left the House in 1867. |
| 172 | Anthony Thornton | D | IL-10 | March 4, 1865 | 1st term | Left the House in 1867. |
| 173 | Lawrence S. Trimble | D | KY-01 | March 4, 1865 | 1st term | |
| 174 | Rowland E. Trowbridge | R | MI-05 | March 4, 1865 Previous service, 1861–1863. | 2nd term* | |
| 175 | Henry Van Aernam | R | NY-31 | March 4, 1865 | 1st term | |
| 176 | Burt Van Horn | R | NY-29 | March 4, 1865 Previous service, 1861–1863. | 2nd term* | |
| 177 | Robert T. Van Horn | R | MO-06 | March 4, 1865 | 1st term | |
| 178 | Hamilton Ward, Sr. | R | NY-27 | March 4, 1865 | 1st term | |
| 179 | Samuel L. Warner | R | CT-02 | March 4, 1865 | 1st term | Left the House in 1867. |
| 180 | Martin Welker | R | OH-14 | March 4, 1865 | 1st term | |
| 181 | John Wentworth | R | IL-01 | March 4, 1865 Previous service, 1843–1851 and 1853–1855. | 6th term** | Left the House in 1867. |
| 182 | Stephen F. Wilson | R | PA-18 | March 4, 1865 | 1st term | |
| 183 | Edwin R. V. Wright | D | NJ-05 | March 4, 1865 | 1st term | Left the House in 1867. |
| Nathaniel P. Banks | R | MA-06 | December 4, 1865 Previous service, 1853–1857. | 4th term* | ||
| Isaac R. Hawkins | U | TN-07 | December 4, 1865 | 1st term | ||
| John Lewis Thomas Jr. | D | MD-02 | December 4, 1865 | 1st term | Left the House in 1867. | |
| Alexander Hamilton Coffroth | D | PA-16 | February 19, 1866 Previous service, 1863–1865. | 2nd term* | Resigned on July 18, 1866. | |
| Henry D. Washburn | R | IN-07 | February 23, 1866 | 1st term | ||
| William E. Dodge | R | NY-08 | April 7, 1866 | 1st term | Left the House in 1867. | |
| William Henry Koontz | R | PA-16 | July 18, 1866 | 1st term | ||
| Samuel M. Arnell | UU | TN-06 | July 24, 1866 | 1st term | ||
| William B. Campbell | U | TN-05 | July 24, 1866 Previous service, 1837–1843. | 4th term* | Left the House in 1867. | |
| Edmund Cooper | U | TN-04 | July 24, 1866 | 1st term | Left the House in 1867. | |
| John W. Leftwich | UU | TN-08 | July 24, 1866 | 1st term | Left the House in 1867. | |
| Horace Maynard | UU | TN-02 | July 24, 1866 Previous service, 1857–1863. | 4th term* | ||
| William Brickly Stokes | UU | TN-03 | July 24, 1866 Previous service, 1859–1861. | 2nd term* | ||
| Nathaniel G. Taylor | U | TN-01 | July 24, 1866 Previous service, 1854–1855. | 2nd term* | Left the House in 1867. | |
| Elijah Hise | D | KY-03 | December 3, 1866 | 1st term | ||
| Andrew H. Ward | D | KY-06 | December 3, 1866 | 1st term | Left the House in 1867. | |
| Robert S. Hale | R | NY-16 | December 4, 1866 | 1st term | Left the House in 1867. | |
| John W. Hunter | D | NY-03 | December 4, 1866 | 1st term | Left the House in 1867. | |
| Turner M. Marquett | R | NE-01 | March 2, 1867 | 1st term | Left the House in 1867. | |
| Rank | Delegate | Party | District | Seniority date (Previous service, if any) | No.# of term(s) | Notes |
|---|---|---|---|---|---|---|
| 1 | Samuel McLean | D | MT | January 6, 1865 | 2nd term | |
| 2 | Allen Alexander Bradford | R | CO | March 4, 1865 | 1st term | |
| 3 | Walter A. Burleigh | R | DAK | March 4, 1865 | 1st term | |
| 4 | José Francisco Chaves | R | NM | March 4, 1865 | 1st term | |
| 5 | Phineas Hitchcock | R | NE | March 4, 1865 | 1st term | |
| 6 | Edward Dexter Holbrook | D | ID | March 4, 1865 | 1st term | |
| 7 | William Henry Hooper | D | UT | March 4, 1865 Previous service, 1859–1861. | 2nd term* | |
| 8 | Arthur A. Denny | R | WA | March 4, 1865 | 1st term | |
| John Noble Goodwin | R | AZ | January 17, 1866 Previous service, 1861–1863. | 2nd term* | ||
This article incorporates public domain material from Biographical Directory of the United States Congress. Federal government of the United States.