This is a complete list of United States senators during the 40th United States Congress listed by seniority from March 4, 1867, to March 3, 1869.

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 their 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.A Chronological List of United States Senators 1789-Present, via www.Senate.gov1871 U.S Census Report Contains 1870 census results1881 U.S Census Report Contains 1880 census results1891 U.S Census Report Contains 1890 census results

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 1868 election) are listed at the end of the list with no number.

Terms of service

ClassTerms of service of senators that expired in yearsClass 1Terms of service of senators that expired in 1869 (CA, CT, DE, FL, IN, MA, MD, ME, MI, MN, MO, MS, MT, NE, NJ, NV, NY, OH, PA, RI, TN, TX, VA, VT, WI, and WV.)Terms of service of senators that expired in 1869.Class 2Terms of service of senators that expired in 1871 (AL, AR, DE, GA, IA, IL, KS, KY, LA, MA, ME, MI, MN, MS, MT, NC, NE, NH, NJ, OR, RI, SC, TN, TX, VA, and WV.)Terms of service of senators that expired in 1871.Class 3Terms of service of senators that expired in 1873 (AL, AR, CA, CT, FL, GA, IA, IL, IN, KS, KY, LA, MD, MO, NC, NH, NV, NY, OH, OR, PA, SC, VT, and WI.)Terms of service of senators that expired in 1873.

U.S. Senate seniority list +U.S. Senate seniority Rank Senator (party-state) Seniority date Other factors 1 Benjamin Wade (R-OH) March 15, 1851 2 Charles Sumner (LR-MA) April 11, 1851 3 Henry Wilson (R-MA) January 31, 1855 4 Lyman Trumbull (R-IL) March 4, 1855 5 Zachariah Chandler (R-MI) March 4, 1857 6 James Dixon (R-CT) 7 James R. Doolittle (R-WI) 8 Henry B. Anthony (R-RI) March 4, 1859 Former governor 9 Willard Saulsbury, Sr. (D-DE) 10 James W. Grimes (R-IA) 11 Timothy O. Howe (R-WI) March 4, 1861 12 John Sherman (R-OH) March 21, 1861 13 Samuel C. Pomeroy (R-KS) April 4, 1861 14 Garrett Davis (D-KY) December 23, 1861 15 Jacob M. Howard (R-MI) January 17, 1862 16 Alexander Ramsey (R-MN) March 4, 1863 17 William Sprague IV (R-RI) 18 John Conness (R-CA) 19 Thomas A. Hendricks (D-IN) 20 Reverdy Johnson (D-MD) 21 Edwin D. Morgan (R-NY) 22 Charles R. Buckalew (D-PA) 23 Waitman T. Willey (R-VA) August 4, 1863 24 Peter G. Van Winkle (R-WV) 25 George R. Riddle (D-DE) February 2, 1864 26 William M. Stewart (R-NV) February 1, 1865 27 James W. Nye (R-NV) 28 Aaron H. Cragin (R-NH) March 4, 1865 29 Richard Yates (R-IL) 30 William P. Fessenden (R-ME) 31 Daniel S. Norton (R-MN) 32 George H. Williams (R-OR) 33 James Guthrie (D-KY) 34 George F. Edmunds (R-VT) April 3, 1866 35 Edmund G. Ross (R-KS) July 19, 1866 36 Joseph S. Fowler (R-TN) July 24, 1866 37 David T. Patterson (R-TN) July 28, 1866 38 Alexander G. Cattell (R-NJ) September 19, 1866 39 Thomas Tipton (R-NE) March 1, 1867 40 John Milton Thayer (R-NE) 41 Roscoe Conkling (R-NY) March 4, 1867 42 Justin Smith Morrill (R-VT) 43 Oliver P. Morton (R-IN) 44 Simon Cameron (R-PA) 45 Orris S. Ferry (R-CT) 46 Cornelius Cole (R-CA) 47 James Harlan (R-IA) 48 James W. Patterson (R-NH) 49 Henry W. Corbett (R-OR) 50 Charles D. Drake (R-MO) James A. Bayard Jr. (D-DE) April 5, 1867 Thomas C. McCreery (D-KY) February 19, 1868 George Vickers (D-MD) March 7, 1868 Adonijah Welch (R-FL) June 17, 1868 Alexander McDonald (R-AR) June 22, 1868 Benjamin F. Rice (R-AR) June 23, 1868 Thomas W. Osborn (R-FL) June 25, 1868 John S. Harris (R-LA) July 8, 1868 William P. Kellogg (R-LA) July 9, 1868 George E. Spencer (R-AL) July 13, 1868 Willard Warner (R-AL) John Pool (R-NC) July 14, 1868 Joseph Carter Abbott (R-NC) Thomas J. Robertson (R-SC) July 15, 1868 Frederick A. Sawyer (R-SC) July 16, 1868

See also 40th United States Congress List of United States representatives in the 40th Congress

Notes

External links Senate Seniority List