This is a complete list of United States representatives during the 37th United States Congress listed by seniority.
As an historical article, the districts and party affiliations listed reflect those during the 37th Congress (March 4, 1861 – March 3, 1863). 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 S. Phelps | D | MO-06 | March 4, 1845 | 9th term | Dean of the House Left the House in 1863. |
| 2 | Galusha A. Grow | R | PA-14 | March 4, 1851 | 6th term | Speaker of the House Left the House in 1863. |
| 3 | Elihu B. Washburne | R | IL-01 | March 4, 1853 | 5th term | |
| 4 | John Bingham | R | OH-21 | March 4, 1855 | 4th term | Left the House in 1863. |
| 5 | James Buffington | R | MA-02 | March 4, 1855 | 4th term | Left the House in 1863. |
| 6 | Henry C. Burnett | D | KY-01 | March 4, 1855 | 4th term | Resigned on December 3, 1861. |
| 7 | Schuyler Colfax | R | IN-09 | March 4, 1855 | 4th term | |
| 8 | John Covode | R | PA-19 | March 4, 1855 | 4th term | Left the House in 1863. |
| 9 | John Hickman | R | PA-06 | March 4, 1855 | 4th term | Left the House in 1863. |
| 10 | Justin S. Morrill | R | VT-02 | March 4, 1855 | 4th term | |
| 11 | John Sherman | R | OH-13 | March 4, 1855 | 4th term | Resigned on March 21, 1861. |
| 12 | Samuel S. Cox | D | OH-12 | March 4, 1857 | 3rd term | |
| 13 | Samuel R. Curtis | R | IA-01 | March 4, 1857 | 3rd term | Resigned on August 4, 1861. |
| 14 | Henry L. Dawes | R | MA-11 | March 4, 1857 | 3rd term | |
| 15 | Reuben Fenton | R | NY-33 | March 4, 1857 Previous service, 1853–1855. | 4th term* | |
| 16 | William Kellogg | R | IL-04 | March 4, 1857 | 3rd term | Left the House in 1863. |
| 17 | Owen Lovejoy | R | IL-03 | March 4, 1857 | 3rd term | |
| 18 | Horace Maynard | U | TN-02 | March 4, 1857 | 3rd term | Left the House in 1863. |
| 19 | Edward J. Morris | R | PA-02 | March 4, 1857 Previous service, 1843–1845. | 4th term* | Resigned on June 8, 1861. |
| 20 | Abram B. Olin | R | NY-13 | March 4, 1857 | 3rd term | Left the House in 1863. |
| 21 | George H. Pendleton | D | OH-01 | March 4, 1857 | 3rd term | |
| 22 | John F. Potter | R | WI-01 | March 4, 1857 | 3rd term | Left the House in 1863. |
| 23 | Eliakim P. Walton | R | VT-01 | March 4, 1857 | 3rd term | Left the House in 1863. |
| 24 | John B. Clark | D | MO-03 | December 7, 1857 | 3rd term | Resigned on July 13, 1861. |
| 25 | Daniel W. Gooch | R | MA-07 | January 31, 1858 | 3rd term | |
| 26 | Clement Vallandigham | D | OH-03 | May 25, 1858 | 3rd term | Left the House in 1863. |
| 27 | Charles Francis Adams, Sr. | R | MA-03 | March 4, 1859 | 2nd term | Resigned on May 1, 1861. |
| 28 | Cyrus Aldrich | R | MN | March 4, 1859 | 2nd term | Left the House in 1863. |
| 29 | William Allen | D | OH-04 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 30 | John B. Alley | R | MA-06 | March 4, 1859 | 2nd term | |
| 31 | James M. Ashley | R | OH-05 | March 4, 1859 | 2nd term | |
| 32 | Elijah Babbitt | R | PA-25 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 33 | Samuel S. Blair | R | PA-18 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 34 | Alfred A. Burnham | R | CT-03 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 35 | James H. Campbell | R | PA-11 | March 4, 1859 Previous service, 1855–1857. | 3rd term* | Left the House in 1863. |
| 36 | Roscoe Conkling | R | NY-20 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 37 | Thomas Corwin | R | OH-07 | March 4, 1859 Previous service, 1831–1840. | 7th term* | Resigned on March 12, 1861. |
| 38 | Charles Delano | R | MA-10 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 39 | R. Holland Duell | R | NY-21 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 40 | William M. Dunn | R | IN-03 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 41 | Sidney Edgerton | R | OH-18 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 42 | Thomas M. Edwards | R | NH-03 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 43 | Thomas D. Eliot | R | MA-01 | March 4, 1859 Previous service, 1854–1855. | 3rd term* | |
| 44 | Alfred Ely | R | NY-29 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 45 | Philip B. Fouke | D | IL-08 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 46 | Augustus Frank | R | NY-30 | March 4, 1859 | 2nd term | |
| 47 | John A. Gurley | R | OH-02 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 48 | James T. Hale | R | PA-15 | March 4, 1859 | 2nd term | |
| 49 | William S. Holman | D | IN-04 | March 4, 1859 | 2nd term | |
| 50 | John Hutchins | R | OH-20 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 51 | Francis William Kellogg | R | MI-03 | March 4, 1859 | 2nd term | |
| 52 | John W. Killinger | R | PA-10 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 53 | John A. Logan | D | IL-09 | March 4, 1859 | 2nd term | Resigned on April 2, 1862. |
| 54 | Dwight Loomis | R | CT-01 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 55 | Robert Mallory | U | KY-07 | March 4, 1859 | 2nd term | |
| 56 | Gilman Marston | R | NH-01 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 57 | James B. McKean | R | NY-15 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 58 | Robert McKnight | R | PA-22 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 59 | Edward McPherson | R | PA-17 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 60 | James K. Moorhead | R | PA-21 | March 4, 1859 | 2nd term | |
| 61 | John T. Nixon | R | NJ-01 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 62 | John W. Noell | D | MO-07 | March 4, 1859 | 2nd term | |
| 63 | Albert G. Porter | R | IN-06 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 64 | Alexander H. Rice | R | MA-04 | March 4, 1859 | 2nd term | |
| 65 | James C. Robinson | D | IL-07 | March 4, 1859 | 2nd term | |
| 66 | George W. Scranton | R | PA-12 | March 4, 1859 | 2nd term | Died on March 24, 1861. |
| 67 | Charles B. Sedgwick | R | NY-24 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 68 | Elbridge G. Spaulding | R | NY-32 | March 4, 1859 Previous service, 1849–1851. | 3rd term* | Left the House in 1863. |
| 69 | Thaddeus Stevens | R | PA-09 | March 4, 1859 Previous service, 1849–1853. | 4th term* | |
| 70 | John L. N. Stratton | R | NJ-02 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 71 | Charles R. Train | R | MA-08 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 72 | Carey A. Trimble | R | OH-10 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 73 | William Vandever | R | IA-02 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 74 | Charles Van Wyck | R | NY-10 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 75 | John P. Verree | R | PA-03 | March 4, 1859 | 2nd term | Left the House in 1863. |
| 76 | Edwin H. Webster | U | MD-02 | March 4, 1859 | 2nd term | |
| 77 | William Windom | R | MN | March 4, 1859 | 2nd term | |
| 78 | Harrison G. O. Blake | R | OH-14 | October 11, 1859 | 2nd term | Left the House in 1863. |
| 79 | John A. McClernand | D | IL-06 | November 8, 1859 Previous service, 1843–1851. | 6th term* | Resigned on October 28, 1861. |
| 80 | Martin F. Conway | R | KS | January 29, 1861 | 2nd term | Left the House in 1863. |
| 81 | Sydenham E. Ancona | D | PA-08 | March 4, 1861 | 1st term | |
| 82 | William Appleton | CU | MA-05 | March 4, 1861 Previous service, 1851–1855. | 3rd term* | Resigned on September 27, 1861. |
| 83 | Isaac N. Arnold | R | IL-02 | March 4, 1861 | 1st term | |
| 84 | Goldsmith Bailey | R | MA-09 | March 4, 1861 | 1st term | Died on May 8, 1862. |
| 85 | Joseph Bailey | D | PA-16 | March 4, 1861 | 1st term | |
| 86 | Stephen Baker | R | NY-12 | March 4, 1861 | 1st term | Left the House in 1863. |
| 87 | Portus Baxter | R | VT-03 | March 4, 1861 | 1st term | |
| 88 | Fernando C. Beaman | R | MI-02 | March 4, 1861 | 1st term | |
| 89 | Francis Preston Blair Jr. | R | MO-01 | March 4, 1861 Previous service, 1857–1859 and 1860. | 3rd term** | |
| 90 | George W. Bridges | U | TN-03 | March 4, 1861 | 1st term | Left the House in 1863. |
| 91 | William G. Brown, Sr. | U | VA-10 | March 4, 1861 Previous service, 1845–1849. | 3rd term* | Left the House in 1863. |
| 92 | George H. Browne | U | RI-02 | March 4, 1861 | 1st term | Left the House in 1863. |
| 93 | Charles B. Calvert | U | MD-06 | March 4, 1861 | 1st term | Left the House in 1863. |
| 94 | John S. Carlile | U | VA-11 | March 4, 1861 Previous service, 1855–1857. | 2nd term* | Resigned on July 9, 1861. |
| 95 | Jacob P. Chamberlain | R | NY-26 | March 4, 1861 | 1st term | Left the House in 1863. |
| 96 | Ambrose W. Clark | R | NY-23 | March 4, 1861 | 1st term | |
| 97 | Andrew J. Clements | U | TN-04 | March 4, 1861 | 1st term | Left the House in 1863. |
| 98 | George T. Cobb | D | NJ-04 | March 4, 1861 | 1st term | Left the House in 1863. |
| 99 | Frederick A. Conkling | R | NY-06 | March 4, 1861 | 1st term | Left the House in 1863. |
| 100 | Erastus Corning | D | NY-14 | March 4, 1861 Previous service, 1857–1859. | 2nd term* | |
| 101 | Thomas B. Cooper | D | PA-07 | March 4, 1861 | 1st term | Died on April 4, 1862. |
| 102 | James A. Cravens | D | IN-02 | March 4, 1861 | 1st term | |
| 103 | John W. Crisfield | U | MD-01 | March 4, 1861 Previous service, 1847–1849. | 2nd term* | Left the House in 1863. |
| 104 | John J. Crittenden | U | KY-08 | March 4, 1861 | 1st term | Left the House in 1863. |
| 105 | William P. Cutler | R | OH-16 | March 4, 1861 | 1st term | Left the House in 1863. |
| 106 | William M. Davis | R | PA-05 | March 4, 1861 | 1st term | Left the House in 1863. |
| 107 | Isaac C. Delaplaine | D | NY-08 | March 4, 1861 | 1st term | Left the House in 1863. |
| 108 | Alexander S. Diven | R | NY-27 | March 4, 1861 | 1st term | Left the House in 1863. |
| 109 | George W. Dunlap | U | KY-06 | March 4, 1861 | 1st term | Left the House in 1863. |
| 110 | James E. English | D | CT-02 | March 4, 1861 | 1st term | |
| 111 | Samuel C. Fessenden | R | ME-03 | March 4, 1861 | 1st term | Left the House in 1863. |
| 112 | George P. Fisher | U | DE | March 4, 1861 | 1st term | Left the House in 1863. |
| 113 | Richard Franchot | R | NY-19 | March 4, 1861 | 1st term | Left the House in 1863. |
| 114 | John N. Goodwin | R | ME-01 | March 4, 1861 | 1st term | Left the House in 1863. |
| 115 | Bradley F. Granger | R | MI-01 | March 4, 1861 | 1st term | Left the House in 1863. |
| 116 | Henry Grider | U | KY-03 | March 4, 1861 Previous service, 1843–1847. | 3rd term* | |
| 117 | Edward Haight | D | NY-09 | March 4, 1861 | 1st term | Left the House in 1863. |
| 118 | Luther Hanchett | R | WI-02 | March 4, 1861 | 1st term | Died on November 24, 1862. |
| 119 | Aaron Harding | U | KY-04 | March 4, 1861 | 1st term | |
| 120 | Valentine B. Horton | R | OH-11 | March 4, 1861 Previous service, 1855–1859. | 3rd term* | Left the House in 1863. |
| 121 | James S. Jackson | U | KY-02 | March 4, 1861 | 1st term | Resigned on December 13, 1861. |
| 122 | Philip Johnson | D | PA-13 | March 4, 1861 | 1st term | |
| 123 | George W. Julian | R | IN-05 | March 4, 1861 Previous service, 1849–1851. | 2nd term* | |
| 124 | William D. Kelley | R | PA-04 | March 4, 1861 | 1st term | |
| 125 | James Kerrigan | D | NY-04 | March 4, 1861 | 1st term | Left the House in 1863. |
| 126 | William E. Lansing | R | NY-22 | March 4, 1861 | 1st term | Left the House in 1863. |
| 127 | John Law | D | IN-01 | March 4, 1861 | 1st term | |
| 128 | Jesse Lazear | D | PA-20 | March 4, 1861 | 1st term | |
| 129 | Cornelius Leary | U | MD-03 | March 4, 1861 | 1st term | Left the House in 1863. |
| 130 | William E. Lehman | D | PA-01 | March 4, 1861 | 1st term | Left the House in 1863. |
| 131 | Henry May | U | MD-04 | March 4, 1861 Previous service, 1853–1855. | 2nd term* | Left the House in 1863. |
| 132 | John W. Menzies | U | KY-10 | March 4, 1861 | 1st term | Left the House in 1863. |
| 133 | William Mitchell | R | IN-10 | March 4, 1861 | 1st term | Left the House in 1863. |
| 134 | Anson Morrill | R | ME-04 | March 4, 1861 | 1st term | Left the House in 1863. |
| 135 | James R. Morris | D | OH-17 | March 4, 1861 | 1st term | |
| 136 | Warren P. Noble | D | OH-09 | March 4, 1861 | 1st term | |
| 137 | Elijah H. Norton | D | MO-04 | March 4, 1861 | 1st term | Left the House in 1863. |
| 138 | Robert H. Nugen | D | OH-15 | March 4, 1861 | 1st term | Left the House in 1863. |
| 139 | Moses F. Odell | D | NY-02 | March 4, 1861 | 1st term | |
| 140 | John Patton | R | PA-24 | March 4, 1861 | 1st term | Left the House in 1863. |
| 141 | Nehemiah Perry | D | NJ-05 | March 4, 1861 | 1st term | |
| 142 | Timothy Guy Phelps | R | CA | March 4, 1861 | 1st term | Left the House in 1863. |
| 143 | Frederick A. Pike | R | ME-06 | March 4, 1861 | 1st term | |
| 144 | Theodore M. Pomeroy | R | NY-25 | March 4, 1861 | 1st term | |
| 145 | John W. Reid | D | MO-05 | March 4, 1861 | 1st term | Resigned on August 3, 1861. |
| 146 | John H. Rice | R | ME-05 | March 4, 1861 | 1st term | |
| 147 | William A. Richardson | D | IL-05 | March 4, 1861 Previous service, 1847–1856. | 6th term* | Resigned on January 29, 1863. |
| 148 | Albert G. Riddle | R | OH-19 | March 4, 1861 | 1st term | Left the House in 1863. |
| 149 | Edward H. Rollins | R | NH-02 | March 4, 1861 | 1st term | |
| 150 | James S. Rollins | CU | MO-02 | March 4, 1861 | 1st term | |
| 151 | Aaron A. Sargent | R | CA | March 4, 1861 | 1st term | Left the House in 1863. |
| 152 | John P. C. Shanks | R | IN-11 | March 4, 1861 | 1st term | Left the House in 1863. |
| 153 | William P. Sheffield | U | RI-01 | March 4, 1861 | 1st term | Left the House in 1863. |
| 154 | Samuel Shellabarger | R | OH-08 | March 4, 1861 | 1st term | Left the House in 1863. |
| 155 | Socrates N. Sherman | R | NY-17 | March 4, 1861 | 1st term | Left the House in 1863. |
| 156 | A. Scott Sloan | R | WI-03 | March 4, 1861 | 1st term | Left the House in 1863. |
| 157 | Edward H. Smith | D | NY-01 | March 4, 1861 | 1st term | Left the House in 1863. |
| 158 | John B. Steele | D | NY-11 | March 4, 1861 | 1st term | |
| 159 | William G. Steele | D | NJ-03 | March 4, 1861 | 1st term | |
| 160 | Andrew J. Thayer | D | OR | March 4, 1861 | 1st term | Resigned on July 30, 1861. |
| 161 | Francis Thomas | U | MD-05 | March 4, 1861 Previous service, 1831–1841. | 6th term* | |
| 162 | Rowland E. Trowbridge | R | MI-04 | March 4, 1861 | 1st term | Left the House in 1863. |
| 163 | Burt Van Horn | R | NY-31 | March 4, 1861 | 1st term | Left the House in 1863. |
| 164 | Robert B. Van Valkenburgh | R | NY-28 | March 4, 1861 | 1st term | |
| 165 | Chauncey Vibbard | D | NY-18 | March 4, 1861 | 1st term | Left the House in 1863. |
| 166 | Daniel W. Voorhees | D | IN-07 | March 4, 1861 | 1st term | |
| 167 | William H. Wadsworth | U | KY-09 | March 4, 1861 | 1st term | |
| 168 | John W. Wallace | R | PA-23 | March 4, 1861 | 1st term | Left the House in 1863. |
| 169 | William Wall | D | NY-05 | March 4, 1861 | 1st term | Left the House in 1863. |
| 170 | Charles W. Walton | R | ME-02 | March 4, 1861 | 1st term | Resigned on May 26, 1862. |
| 171 | Elijah Ward | D | NY-07 | March 4, 1861 Previous service, 1857–1859. | 2nd term* | |
| 172 | Kellian Whaley | U | VA-12 | March 4, 1861 | 1st term | Left the House in 1863. |
| 173 | William A. Wheeler | R | NY-16 | March 4, 1861 | 1st term | Left the House in 1863. |
| 174 | Albert S. White | R | IN-08 | March 4, 1861 Previous service, 1837–1839. | 2nd term* | Left the House in 1863. |
| 175 | Chilton A. White | D | OH-06 | March 4, 1861 | 1st term | |
| 176 | Charles A. Wickliffe | U | KY-05 | March 4, 1861 Previous service, 1823–1833. | 6th term* | Left the House in 1863. |
| 177 | Benjamin Wood | D | NY-03 | March 4, 1861 | 1st term | |
| 178 | George C. Woodruff | D | CT-04 | March 4, 1861 | 1st term | Left the House in 1863. |
| 179 | Charles H. Upton | U | VA-07 | May 23, 1861 | 1st term | Resigned on February 27, 1862. |
| Benjamin Thomas | U | MA-03 | June 11, 1861 | 1st term | Left the House in 1863. | |
| Charles J. Biddle | D | PA-02 | July 2, 1861 | 1st term | Left the House in 1863. | |
| Richard A. Harrison | U | OH-07 | July 4, 1861 | 1st term | Left the House in 1863. | |
| Samuel T. Worcester | R | OH-13 | July 4, 1861 | 1st term | Left the House in 1863. | |
| Hendrick B. Wright | D | PA-12 | July 4, 1861 Previous service, 1853–1855. | 2nd term* | Left the House in 1863. | |
| George K. Shiel | D | OR | July 30, 1861 | 1st term | Left the House in 1863. | |
| James F. Wilson | R | IA-01 | October 8, 1861 | 1st term | ||
| Jacob B. Blair | U | VA-11 | December 2, 1861 | 1st term | Left the House in 1863. | |
| Samuel Hooper | R | MA-05 | December 2, 1861 | 1st term | ||
| Anthony L. Knapp | D | IL-06 | December 12, 1861 | 1st term | ||
| William A. Hall | D | MO-03 | January 20, 1862 | 1st term | ||
| Thomas L. Price | D | MO-05 | January 21, 1862 | 1st term | Left the House in 1863. | |
| Samuel L. Casey | U | KY-01 | March 10, 1862 | 1st term | Left the House in 1863. | |
| Joseph Segar | U | VA-01 | March 16, 1862 | 1st term | Left the House in 1863. | |
| William J. Allen | D | IL-09 | June 2, 1862 | 1st term | ||
| Frederick Low | R | CA | June 3, 1862 | 1st term | Left the House in 1863. | |
| John D. Stiles | D | PA-07 | June 3, 1862 | 1st term | ||
| T. A. D. Fessenden | R | ME-02 | December 1, 1862 | 1st term | Left the House in 1863. | |
| Amasa Walker | D | MA-09 | December 1, 1862 | 1st term | Left the House in 1863. | |
| George H. Yeaman | U | KY-02 | December 1, 1862 | 1st term | ||
| Michael Hahn | U | LA-02 | December 3, 1862 | 1st term | Left the House in 1863. | |
| Benjamin Flanders | U | LA-01 | December 3, 1862 | 1st term | Left the House in 1863. | |
| Walter D. McIndoe | R | WI-02 | January 26, 1863 | 1st term | ||
| Lewis McKenzie | U | VA-07 | February 16, 1863 | 1st term | Left the House in 1863. | |
| Rank | Delegate | Party | District | Seniority date (Previous service, if any) | No.# of term(s) | Notes |
|---|---|---|---|---|---|---|
| 1 | Samuel Gordon Daily | R | NE | May 18, 1860 | 2nd term | |
| 2 | John Milton Bernhisel | Ind. | UT | March 4, 1861 Previous service, 1851–1859. | 5th term* | |
| 3 | William H. Wallace | D | WA | March 4, 1861 | 1st term | |
| 4 | John Sebrie Watts | R | NM | March 4, 1861 | 1st term | |
| Hiram Pitt Bennet | R | CO | August 19, 1861 | 1st term | ||
| John Cradlebaugh | Ind. | NV | December 2, 1861 | 1st term | ||
| John Blair Smith Todd | D | DAK | December 9, 1861 | 1st term | ||
This article incorporates public domain material from Biographical Directory of the United States Congress. Federal government of the United States.