# List of United States senators in the 55th Congress

This is a complete list of members of the United States Senate during the 55th United States Congress listed by seniority, from March 4, 1897, to March 3, 1899.
Order of service is based on the commencement of the senator's first term. Behind this is former service as a senator (only giving the senator seniority within his or her new incoming class), service as vice president, a House member, a cabinet secretary, or a governor of a state. The final factor is the population of the senator's state.
Senators who were sworn in during the middle of the Congress (up until the last senator who was not sworn in early after winning the November 1898 election) are listed at the end of the list with no number.

## Terms of service

| Class | Terms of service of senators that expired in years |
| Class 1 | Terms of service of senators that expired in 1899 (CA, CT, DE, FL, IN, MA, MD, ME, MI, MN, MO, MS, MT, ND, NE, NJ, NV, NY, OH, PA, RI, TN, TX, UT, VA, VT, WA, WI, WV, and WY.) |
| Class 2 | Terms of service of senators that expired in 1901 (AL, AR, CO, DE, GA, IA, ID, IL, KS, KY, LA, MA, ME, MI, MN, MS, MT, NC, NE, NH, NJ, OR, RI, SC, SD, TN, TX, VA, WV, and WY.) |
| Class 3 | Terms of service of senators that expired in 1903 (AL, AR, CA, CO, CT, FL, GA, ID, IL, IN, IA, KS, KY, LA, MD, MO, NC, ND, NH, NV, NY, OH, OR, PA, SC, SD, UT, VT, WA, and WI.) |

## U.S. Senate seniority list

U.S. Senate seniority :
| Rank | Senator (party-state) | Seniority date | Other factors |
| 1 | Justin S. Morrill (R-VT) | March 4, 1867 | Former representative |
| 2 | William B. Allison (R-IA) | March 4, 1873 | Former representative |
| 3 | John P. Jones (R-NV) | March 4, 1873 | |
| 4 | Francis Cockrell (D-MO) | March 4, 1875 | |
| 5 | George F. Hoar (R-MA) | March 4, 1877 | Former representative |
| 6 | Isham G. Harris (D-TN) | March 4, 1877 | Former governor, former representative |
| 7 | John T. Morgan (D-AL) | March 4, 1877 | |
| 8 | George G. Vest (D-MO) | March 4, 1879 | Missouri 5th in population (1870) |
| 9 | Orville H. Platt (R-CT) | March 4, 1879 | Connecticut 25th in population (1870) |
| 10 | John Sherman (R-OH) | March 4, 1881 | Previously a senator |
| 11 | Eugene Hale (R-ME) | March 4, 1881 | Former representative (10 years) |
| 12 | Joseph R. Hawley (R-CT) | March 4, 1881 | Former representative (5 years) |
| 13 | James Z. George (D-MS) | March 4, 1881 | Mississippi 18th in population (1870) |
| 14 | Arthur P. Gorman (D-MD) | March 4, 1881 | Maryland 20th in population (1870) |
| 15 | William P. Frye (R-ME) | March 18, 1881 | Former representative |
| 16 | Nelson W. Aldrich (R-RI) | October 5, 1881 | Former representative, former governor |
| 17 | Shelby M. Cullom (R-IL) | March 4, 1883 | Former representative, former governor |
| 18 | Henry M. Teller (D-CO) | March 4, 1885 | Previously a senator |
| 19 | James K. Jones (D-AR) | March 4, 1885 | |
| 20 | George Gray (D-DE) | March 18, 1885 | |
| 21 | James H. Berry (D-AR) | March 20, 1885 | Former governor |
| 22 | William M. Stewart (R-NV) | March 4, 1887 | Previously a senator (11 years) |
| 23 | David Turpie (D-IN) | March 4, 1887 | Previously a senator (1 month) |
| 24 | John W. Daniel (D-VA) | March 4, 1887 | Former representative |
| 25 | William B. Bate (D-TN) | March 4, 1887 | Former governor, Tennessee 12th in population (1880) |
| 26 | Cushman K. Davis (R-MN) | March 4, 1887 | Former governor, Minnesota 26th in population (1880) |
| 27 | Matthew Quay (R-PA) | March 4, 1887 | Pennsylvania 2nd in population (1880) |
| 28 | Charles J. Faulkner (D-WV) | March 4, 1887 | West Virginia 29th in population (1880) |
| 29 | Samuel Pasco (D-FL) | May 19, 1887 | |
| 30 | James McMillan (R-MI) | March 4, 1889 | Michigan 9th in population (1880) |
| 31 | Edward O. Wolcott (R-CO) | March 4, 1889 | Colorado 35th in population (1880) |
| 32 | William E. Chandler (R-NH) | June 18, 1889 | |
| 33 | Richard F. Pettigrew (SR-SD) | November 2, 1889 | Former delegate |
| 34 | George L. Shoup (R-ID) | December 18, 1890 | Former governor |
| 35 | Jacob H. Gallinger (R-NH) | March 4, 1891 | Former representative (4 years) |
| 36 | Henry C. Hansbrough (R-ND) | March 4, 1891 | Former representative (2 years) |
| 37 | James H. Kyle (R-SD) | March 4, 1891 | |
| 38 | Redfield Proctor (R-VT) | November 2, 1891 | Former governor |
| 39 | Roger Q. Mills (D-TX) | March 23, 1892 |
| 40 | Donelson Caffery (D-LA) | December 31, 1892 |
| 41 | William Lindsay (D-KY) | February 15, 1893 |
| 42 | Henry Cabot Lodge (R-MA) | March 4, 1893 | Former representative (6 years) |
| 43 | John L. Mitchell (D-WI) | March 4, 1893 | Former representative (2 years) |
| 44 | Edward Murphy Jr. (D-NY) | March 4, 1893 | New York 1st in population (1890) |
| 45 | James Smith Jr. (D-NJ) | March 4, 1893 | New Jersey 18th in population (1890) |
| 46 | Stephen M. White (D-CA) | March 4, 1893 | California 22nd in population (1890) |
| 47 | William V. Allen (PP-NE) | March 4, 1893 | Nebraska 26th in population (1890) |
| 48 | William N. Roach (D-ND) | March 4, 1893 | North Dakota 41st in population (1890) |
| 49 | George C. Perkins (R-CA) | July 26, 1893 | Former governor |
| 50 | Lee Mantle (SR-MT) | January 16, 1895 |
| 51 | Julius C. Burrows (R-MI) | January 23, 1895 | Former representative |
| 52 | Clarence D. Clark (R-WY) | January 24, 1895 | Former representative |
| 53 | Jeter C. Pritchard (R-NC) | January 24, 1895 | |
| 54 | John L. Wilson (R-WA) | February 19, 1895 | |
| 55 | Edward C. Walthall (D-MS) | March 4, 1895 | Previously a senator (9 years) |
| 56 | William J. Sewell (R-NJ) | March 4, 1895 | Previously a senator (6 years) |
| 57 | Francis E. Warren (R-WY) | March 4, 1895 | Previously a senator (3 years) |
| 58 | Horace Chilton (D-TX) | March 4, 1895 | Previously a senator (2 years) |
| 59 | Thomas H. Carter (R-MT) | March 4, 1895 | Former delegate, former representative |
| 60 | Stephen B. Elkins (R-WV) | March 4, 1895 | Former delegate, former cabinet member |
| 61 | John H. Gear (R-IA) | March 4, 1895 | Former governor, Iowa 10th in population (1890) |
| 62 | Knute Nelson (R-MN) | March 4, 1895 | Former governor, Minnesota 20th in population (1890) |
| 63 | Benjamin Tillman (D-SC) | March 4, 1895 | Former governor, South Carolina 23rd in population (1890) |
| 64 | George P. Wetmore (R-RI) | March 4, 1895 | Former governor, Rhode Island 36th in population (1890) |
| 65 | Augustus O. Bacon (D-GA) | March 4, 1895 | Georgia 12th in population (1890) |
| 66 | Thomas S. Martin (D-VA) | March 4, 1895 | Virginia 15th in population (1890) |
| 67 | Marion Butler (PP-NC) | March 4, 1895 | North Carolina 16th in population (1890) |
| 68 | Lucien Baker (PP-KS) | March 4, 1895 | Kansas 19th in population (1890) |
| 69 | John M. Thurston (R-NE) | March 4, 1895 | Nebraska 26th in population (1890) |
| 70 | George W. McBride (R-OR) | March 4, 1895 | Oregon 38th in population (1890) |
| 71 | Frank J. Cannon (SR-UT) | January 22, 1896 | |
| 72 | Richard R. Kenney (D-DE) | January 19, 1897 | |
| 73 | John C. Spooner (R-WI) | March 4, 1897 | Previously a senator (6 years) |
| 74 | Thomas C. Platt (R-NY) | March 4, 1897 | Previously a senator (2 months) |
| 75 | William E. Mason (R-IL) | March 4, 1897 | Former representative (4 years) |
| 76 | William A. Harris (PP-KS) | March 4, 1897 | Former representative (2 years), Kansas 19th in population (1890) |
| 77 | George L. Wellington (R-MD) | March 4, 1897 | Former representative (2 years), Maryland 27th in population (1890) |
| 78 | Joseph L. Rawlins (D-UT) | March 4, 1897 | Former delegate |
| 79 | Joseph B. Foraker (R-OH) | March 4, 1897 | Former governor, Ohio 4th in population (1890) |
| 80 | Samuel D. McEnery (D-LA) | March 4, 1897 | Former governor, Louisiana 25th in population (1890) |
| 81 | Boies Penrose (R-PA) | March 4, 1897 | Pennsylvania 2nd in population (1890) |
| 82 | Charles W. Fairbanks (R-IN) | March 4, 1897 | Indiana 8th in population (1890) |
| 83 | William J. Deboe (R-KY) | March 4, 1897 | Kentucky 11th in population (1890) |
| 84 | Alexander S. Clay (D-GA) | March 4, 1897 | Georgia 12th in population (1890) |
| 85 | Edmund Pettus (D-AL) | March 4, 1897 | Alabama 17th in population (1890) |
| 86 | Joseph H. Earle (D-SC) | March 4, 1897 | South Carolina 23rd in population (1890) |
| 87 | George Turner (SR-WA) | March 4, 1897 | Washington 34th in population (1890) |
| 88 | Henry Heitfeld (PP-ID) | March 4, 1897 | Idaho 43rd in population (1890) |
| | Mark Hanna (R-OH) | March 6, 1897 | |
| 89 | Stephen Mallory II (D-FL) | May 15, 1897 | |
| | John L. McLaurin (D-SC) | June 1, 1897 | |
| | Thomas B. Turley (D-TN) | July 20, 1897 | |
| | Hernando Money (D-MS) | October 8, 1897 | |
| | William V. Sullivan (D-MS) | May 31, 1898 | |
| 90 | Joseph Simon (R-OR) | October 8, 1898 | |
| | Jonathan Ross (R-VT) | January 11, 1899 | |