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List of United States Senators in the 40th Congress by seniority


List of United States Senators in the 40th Congress by seniority

This is a classification of members of the United States Senate by seniority during the 40th United States Congress, from March 4, 1867 to March 4, 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 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.[1][2][3][4]

Senators who were sworn in in 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.

U.S. Senate Seniority
Rank Name Seniority Date Other Factors
Benjamin Wade (R-OH) March 15, 1851
Charles Sumner (LR-MA) April 11, 1851
Henry Wilson (R-MA) January 31, 1855
Lyman Trumbull (R-IL) March 4, 1855
Zachariah Chandler (R-MI) March 4, 1857
James Dixon (R-CT)
James R. Doolittle (R-WI)
Henry B. Anthony (R-RI) March 4, 1859 Former Governor
Willard Saulsbury, Sr. (D-DE)
James W. Grimes (R-IA)
Timothy O. Howe (R-WI) March 4, 1861
John Sherman (R-OH) March 21, 1861
Samuel C. Pomeroy (R-KS) April 4, 1861
Garrett Davis (D-KY) December 23, 1861
Jacob M. Howard (R-MI) January 17, 1862
Alexander Ramsey (R-MN) March 4, 1863
William Sprague IV (R-RI)
John Conness (R-CA)
Thomas A. Hendricks (D-IN)
Reverdy Johnson (D-MD)
Edwin D. Morgan (R-NY)
Charles R. Buckalew (D-PA)
Waitman T. Willey (R-VA) August 4, 1863
Peter G. Van Winkle (R-WV)
George R. Riddle (D-DE) February 2, 1864
William M. Stewart (R-NV) December 15, 1864
James W. Nye (R-NV) December 16, 1864
Aaron H. Cragin (R-NH) March 4, 1865
Richard Yates (R-IL)
William P. Fessenden (R-MA)
Daniel S. Norton (R-MN)
George H. Williams (R-OR)
James Guthrie (D-KY)
George F. Edmunds (R-VT) April 3, 1866
Joseph S. Fowler (R-TN) July 24, 1866
Edmund G. Ross (R-KS) July 25, 1866
David T. Patterson (R-TN) July 28, 1866
Alexander G. Cattell (R-NJ) September 19, 1866
Roscoe Conkling (R-NY) March 4, 1867
Justin Smith Morrill (R-VT)
Oliver P. Morton (R-IN)
Simon Cameron (R-PA)
Orris S. Ferry (R-CT)
Thomas Tipton (R-NE)
Cornelius Cole (R-CA)
James Harlan (R-IA)
James W. Patterson (R-NH)
Henry W. Corbett (R-OR)
Charles D. Drake (R-MO)
John Milton Thayer (R-NE)
James A. Bayard, Jr. (D-DE) April 11, 1867
Thomas C. McCreery (R-RI) 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-SC) July 14, 1868
Joseph Carter Abbott (R-NC)
Thomas J. Robertson (R-SC) July 15, 1868
Frederick A. Sawyer (R-SC) July 16, 1868


  1. ^ A Chronological List of United States Senators 1789-Present, via
  2. ^ 1871 U.S Census Report Contains 1870 Census results
  3. ^ 1881 U.S Census Report Contains 1880 Census results
  4. ^ 1891 U.S Census Report Contains 1890 Census results

External links

  • Senate Seniority List
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