State (Class)
|
Original
|
Appointee
|
Election winner
|
Senator
|
Vacancy event
|
Senator
|
Date
|
Senator
|
Date
|
Virginia (Class 1)
|
William Grayson (AA)
|
Died March 12, 1790
|
John Walker (PA)
|
March 31, 1790
|
James Monroe (AA)
|
November 9, 1790
|
New Jersey (Class 2)
|
William Paterson (PA)
|
Resigned November 13, 1790
|
No appointment
|
Philemon Dickinson (PA)
|
November 23, 1790
|
Connecticut (Class 3)
|
William S. Johnson (PA)
|
Resigned March 4, 1791
|
No appointment
|
Roger Sherman (PA)
|
June 13, 1791
|
Virginia (Class 2)
|
Richard Henry Lee (AA)
|
Resigned October 8, 1792
|
No appointment
|
John Taylor (AA)
|
October 18, 1792
|
Maryland (Class 1)
|
Charles Carroll (PA)
|
Resigned November 30, 1792
|
No appointment
|
Richard Potts (PA)
|
January 10, 1793
|
Pennsylvania (Class 1)
|
Vacant
|
Failure to elect by March 4, 1791
|
No appointment
|
Albert Gallatin (AA)
|
February 28, 1793
|
Connecticut (Class 3)
|
Roger Sherman (PA)
|
Died July 23, 1793
|
No appointment
|
Stephen Mitchell (PA)
|
December 2, 1793
|
New York (Class 3)
|
Rufus King (F)
|
Resigned May 23, 1796
|
No appointment
|
John Laurance (F)
|
November 9, 1796
|
New York (Class 1)
|
Philip Schuyler (F)
|
Resigned January 3, 1798
|
No appointment
|
John Sloss Hobart (F)
|
January 11, 1798
|
New York (Class 1)
|
John Sloss Hobart (F)
|
Resigned April 16, 1798
|
William North (F)
|
May 5, 1798
|
James Watson (F)
|
August 17, 1798
|
New York (Class 1)
|
James Watson (F)
|
Resigned March 19, 1800
|
No appointment
|
Gouverneur Morris (F)
|
April 3, 1800
|
New York (Class 3)
|
John Laurance (F)
|
Resigned August 1800
|
No appointment
|
John Armstrong Jr. (DR)
|
November 6, 1800
|
New York (Class 3)
|
John Armstrong Jr. (DR)
|
Resigned February 5, 1802
|
No appointment
|
DeWitt Clinton (DR)
|
February 9, 1802
|
New York (Class 1)
|
Theodorus Bailey (DR)
|
Resigned January 16, 1804
|
No appointment
|
John Armstrong Jr. (DR)
|
February 3, 1804
|
New York (Class 3)
|
John Armstrong Jr. (DR)
|
Resigned February 23, 1804
|
No appointment
|
John Smith (DR)
|
New York (Class 1)
|
John Armstrong Jr. (DR)
|
Resigned June 30, 1804
|
No appointment
|
Samuel L. Mitchill (DR)
|
November 9, 1804
|
Alabama (Class 3)
|
John Williams Walker (DR)
|
Resigned December 12, 1822
|
No appointment
|
William Kelly (DR)
|
December 12, 1822
|
Delaware (Class 2)
|
Nicholas Van Dyke (F)
|
Failure to elect by March 4, 1823
|
No appointment
|
Nicholas Van Dyke (F)
|
January 8, 1824
|
Delaware (Class 1)
|
Caesar A. Rodney (DR)
|
Resigned January 29, 1823
|
No appointment
|
Thomas Clayton (F)
|
Louisiana (Class 3)
|
James Brown (DR)
|
Resigned December 10, 1823
|
No appointment
|
Josiah S. Johnston (DR)
|
January 15, 1824
|
Louisiana (Class 2)
|
Henry Johnson (DR)
|
Resigned May 27, 1824
|
No appointment
|
Charles Bouligny (DR)
|
November 19, 1824
|
Illinois (Class 3)
|
Ninian Edwards (DR)
|
Resigned March 4, 1824
|
No appointment
|
John McLean (DR)
|
November 24, 1824
|
Georgia (Class 2)
|
Nicholas Ware (DR)
|
Died January 29, 1823
|
No appointment
|
Thomas W. Cobb (F)
|
December 6, 1824
|
Virginia (Class 2)
|
John Taylor (DR)
|
Died August 21, 1824
|
No appointment
|
Littleton Tazewell (DR)
|
December 7, 1824
|
Alabama (Class 3)
|
Henry H. Chambers (DR)
|
Died January 24, 1826
|
Israel Pickens (DR)
|
February 17, 1826
|
John McKinley (J)
|
November 27, 1826
|
New York (Class 1)
|
Martin Van Buren (DR)
|
Resigned December 20, 1828
|
No appointment
|
Charles E. Dudley (D)
|
January 15, 1829
|
New York (Class 3)
|
William L. Marcy (D)
|
Resigned January 1, 1833
|
No appointment
|
Silas Wright (D)
|
January 4, 1833
|
Alabama (Class 3)
|
John McKinley (D)
|
Resigned April 22, 1837
|
Clement Comer Clay (D)
|
June 19, 1837
|
Arthur P. Bagby (D)
|
November 24, 1841
|
Arkansas (Class 2)
|
William S. Fulton (D)
|
Died August 15, 1844
|
No appointment
|
Chester Ashley (D)
|
November 8, 1844
|
New York (Class 1)
|
Nathaniel P. Tallmadge (W)
|
Resigned June 17, 1844
|
Daniel S. Dickinson (D)
|
November 30, 1844
|
Daniel S. Dickinson (D)
|
January 18, 1845
|
New York (Class 3)
|
Silas Wright (D)
|
Resigned November 26, 1844
|
Henry A. Foster (D)
|
November 30, 1844
|
John Adams Dix (D)
|
January 18, 1845
|
Arkansas (Class 2)
|
Chester Ashley (D)
|
Died April 29, 1848
|
William K. Sebastian (D)
|
May 12, 1848
|
William K. Sebastian (D)
|
November 17, 1848
|
Alabama (Class 2)
|
Dixon Hall Lewis (D)
|
Died October 24, 1848
|
Benjamin Fitzpatrick (D)
|
November 25, 1848
|
Jeremiah Clemens (D)
|
November 30, 1849
|
Massachusetts (Class 2)
|
Daniel Webster (W)
|
Resigned July 22, 1850
|
Robert Charles Winthrop (W)
|
July 30, 1850
|
Robert Rantoul Jr. (D)
|
January 14, 1851
|
New Hampshire (Class 3)
|
James Bell (R)
|
Died May 26, 1857
|
No appointment
|
Daniel Clark (R)
|
June 26, 1857
|
Tennessee (Class 1)
|
Vacant
|
Failure to elect by March 4, 1857
|
No appointment
|
Andrew Johnson (D)
|
October 8, 1857
|
South Carolina (Class 3)
|
Andrew Butler
|
Died May 25, 1857
|
No appointment
|
James Henry Hammond (D)
|
December 6, 1857
|
North Carolina (Class 3)
|
Asa Biggs
|
Resigned May 5, 1858
|
Thomas Lanier Clingman (D)
|
May 7, 1858
|
Thomas Lanier Clingman (D)
|
November 23, 1858
|
California (Class 3)
|
David C. Broderick (D)
|
Died September 16, 1859
|
Henry P. Haun (D)
|
November 3, 1859
|
Milton S. Latham (D)
|
January 11, 1860
|
California (Class 1)
|
Eugene Casserly (D)
|
Resigned November 29, 1873
|
No appointment
|
John S. Hager (D)
|
December 23, 1873
|
Alabama (Class 3)
|
George S. Houston (D)
|
Died December 31, 1879
|
Luke Pryor (D)
|
January 7, 1880
|
James L. Pugh (D)
|
November 24, 1880
|
New York (Class 1)
|
Thomas C. Platt (R)
|
Resigned May 16, 1881
|
No appointment
|
Warner Miller (R)
|
July 16, 1881
|
New York (Class 3)
|
Roscoe Conkling (R)
|
Resigned May 16, 1881
|
No appointment
|
Elbridge G. Lapham (R)
|
July 22, 1881
|
Arkansas (Class 2)
|
Augustus Garland (D)
|
Resigned March 6, 1885
|
No appointment
|
James H. Berry (D)
|
March 20, 1885
|
California (Class 1)
|
John Franklin Miller (R)
|
Died March 8, 1886
|
George Hearst (D)
|
March 23, 1886
|
Abram P. Williams (R)
|
August 4, 1886
|
California (Class 1)
|
George Hearst (D)
|
Died February 28, 1891
|
No appointment
|
Charles N. Felton (R)
|
March 19, 1891
|
California (Class 3)
|
Leland Stanford (R)
|
Died June 21, 1893
|
George C. Perkins (R)
|
July 26, 1893
|
George C. Perkins (R)
|
January 22, 1895
|
Mississippi (Class 2)
|
Edward C. Walthall (D)
|
Resigned January 24, 1894
|
No appointment
|
Anselm J. McLaurin (D)
|
February 7, 1894
|
Louisiana (Class 3)
|
Edward D. White (D)
|
Resigned March 12, 1894
|
Newton C. Blanchard (D)
|
March 12, 1894
|
Newton C. Blanchard (D)
|
May 16, 1894
|
Georgia (Class 2)
|
Alfred H. Colquitt (D)
|
Died March 26, 1894
|
Patrick Walsh (D)
|
April 2, 1894
|
Patrick Walsh (D)
|
November 2, 1894
|
North Carolina (Class 3)
|
Zebulon B. Vance
|
Died April 14, 1894
|
Thomas J. Jarvis (D)
|
April 19, 1894
|
Jeter C. Pritchard (D)
|
January 23, 1895
|
Michigan (Class 1)
|
Francis B. Stockbridge (R)
|
Died April 3, 1894
|
John Patton Jr. (R)
|
May 5, 1894
|
Julius C. Burrows (R)
|
January 24, 1895
|
Montana (Class 1)
|
Vacant
|
Failure to elect by March 4, 1893
|
No appointment
|
Lee Mantle (R)
|
January 16, 1895
|
Wyoming (Class 1)
|
Vacant
|
Failure to elect by March 4, 1893
|
No appointment
|
Clarence D. Clark (R)
|
January 23, 1895
|
Washington (Class 1)
|
Vacant
|
Failure to elect by March 4, 1893
|
No appointment
|
John L. Wilson (R)
|
February 19, 1895
|
Mississippi (Class 2)
|
Edward C. Walthall (D)
|
Died April 21, 1898
|
William V. Sullivan (D)
|
May 31, 1898
|
William V. Sullivan (D)
|
January 16, 1900
|
Alabama (Class 3)
|
Edmund Pettus (D)
|
Died July 27, 1907
|
No appointment
|
Joseph F. Johnston (D)
|
August 6, 1907
|
Pennsylvania (Class 1)
|
Philander C. Knox (R)
|
Resigned March 4, 1909
|
No appointment
|
George T. Oliver (R)
|
March 17, 1909
|
Mississippi (Class 2)
|
Anselm J. McLaurin (D)
|
Died December 22, 1909
|
James Gordon (D)
|
December 27, 1909
|
LeRoy Percy (D)
|
February 22, 1910
|
Louisiana (Class 3)
|
Samuel D. McEnery (D)
|
Died June 28, 1910
|
John Thornton (D)
|
August 27, 1910
|
John Thornton (D)
|
December 6, 1910
|
North Dakota (Class 3)
|
Martin N. Johnson (R)
|
Died October 12, 1909
|
Fountain L. Thompson (D)
|
November 10, 1909 – Jan. 31, 1910 (resigned)
|
Asle Gronna (R)
|
February 1, 1911
|
William E. Purcell (D)
|
February 1, 1910
|
West Virginia (Class 2)
|
Stephen Benton Elkins (R)
|
Died January 4, 1911
|
Davis Elkins (R)
|
January 9, 1911
|
Clarence Wayland Watson (D)
|
February 1, 1911
|
Iowa (Class 3)
|
Jonathan P. Dolliver (R)
|
Died October 15, 1910
|
Lafayette Young (R)
|
November 4, 1910
|
William S. Kenyon (R)
|
April 11, 1911
|
Georgia (Class 3)
|
Alexander S. Clay (D)
|
Died November 13, 1910
|
Joseph M. Terrell (D)
|
November 17, 1910
|
M. Hoke Smith (D)
|
July 12, 1911
|
Maine (Class 2)
|
William P. Frye (R)
|
Died August 8, 1911
|
No appointment
|
Obadiah Gardner (D)
|
April 2, 1912
|
Colorado (Class 3)
|
Charles J. Hughes Jr. (D)
|
Died January 11, 1911
|
No appointment
|
Charles S. Thomas (D)
|
January 15, 1913
|
Tennessee (Class 2)
|
Robert Love Taylor (D)
|
Died March 31, 1912
|
Newell Sanders (R)
|
April 11, 1912
|
William R. Webb (D)
|
January 23, 1913
|
Nevada (Class 1)
|
George S. Nixon (R)
|
Died June 5, 1912
|
William A. Massey (R)
|
July 1, 1912
|
Key Pittman (D)
|
January 23, 1913
|
Texas (Class 2)
|
Joseph Weldon Bailey (D)
|
Resigned January 3, 1913
|
Rienzi Melville Johnston (D)
|
January 4, 1913
|
Morris Sheppard (D)
|
January 23, 1913
|
Arkansas (Class 2)
|
Jeff Davis
|
Died January 3, 1913
|
John N. Heiskell (D)
|
January 6, 1913
|
William Marmaduke Kavanaugh (D)
|
January 23, 1913
|
Idaho (Class 3)
|
Weldon B. Heyburn (R)
|
Died October 17, 1912
|
Kirtland Irving Perky (D)
|
November 18, 1912
|
James H. Brady (R)
|
January 24, 1913
|
Illinois (Class 3)
|
William Lorimer (R)
|
Election invalidated July 13, 1912
|
No appointment
|
Lawrence Yates Sherman (R)
|
March 26, 1913
|
Seventeenth Amendment ratified April 8, 1913. All subsequent Senate elections are by popular vote.
|
Maryland (Class 1)
|
Isidor Rayner (D)
|
Died November 25, 1912
|
William P. Jackson (R)
|
November 29, 1912
|
Blair Lee (D)
|
November 4, 1913
|
Alabama (Class 3)
|
Joseph F. Johnston (D)
|
Died August 8, 1913
|
No appointment
|
Francis S. White (D)
|
May 11, 1914
|
Georgia (Class 2)
|
Augustus Octavius Bacon (D)
|
Died February 14, 1914
|
William S. West (D)
|
March 1, 1914
|
Thomas W. Hardwick (D)
|
November 3, 1914
|
Kentucky (Class 3)
|
William O. Bradley (R)
|
Died May 23, 1914
|
Johnson N. Camden (D)
|
June 16, 1914
|
Johnson N. Camden (D)
|
November 3, 1914
|
Maine (Class 2)
|
Edwin C. Burleigh (R)
|
Died June 16, 1916
|
No appointment
|
Bert M. Fernald (R)
|
September 11, 1916
|
Indiana (Class 3)
|
Benjamin F. Shively (D)
|
Died March 14, 1916
|
Thomas Taggart (D)
|
March 20, 1916
|
James Eli Watson (R)
|
November 7, 1916
|
Arkansas (Class 3)
|
James Paul Clarke (D)
|
Died October 1, 1916
|
No appointment
|
William F. Kirby (D)
|
November 7, 1916
|
Wisconsin (Class 3)
|
Paul O. Husting (D)
|
Died October 21, 1917
|
No appointment
|
Irvine L. Lenroot (R)
|
April 18, 1918
|
Oregon (Class 2)
|
Harry Lane (D)
|
Died May 23, 1917
|
Charles L. McNary (R)
|
May 29, 1917
|
Frederick W. Mulkey (R)
|
November 5, 1918
|
Nevada (Class 3)
|
Francis G. Newlands (D)
|
Died December 24, 1917
|
Charles B. Henderson (D)
|
January 12, 1918
|
Charles B. Henderson (D)
|
November 5, 1918
|
Idaho (Class 3)
|
James H. Brady (R)
|
Died January 13, 1918
|
John F. Nugent (D)
|
January 22, 1918
|
John F. Nugent (D)
|
November 5, 1918
|
New Jersey (Class 2)
|
William Hughes (D)
|
Died January 30, 1918
|
David Baird (R)
|
February 23, 1918
|
David Baird (R)
|
November 5, 1918
|
Louisiana (Class 3)
|
Robert F. Broussard (D)
|
Died April 12, 1918
|
Walter Guion (D)
|
April 22, 1918
|
Edward Gay (D)
|
November 5, 1918
|
Missouri (Class 3)
|
William J. Stone (D)
|
Died April 14, 1918
|
Xenophon P. Wilfley (D)
|
April 30, 1918
|
Selden P. Spencer (R)
|
November 5, 1918
|
South Carolina (Class 2)
|
Benjamin R. Tillman (D)
|
Died July 3, 1918
|
Christie Benet (D)
|
July 6, 1918
|
William P. Pollock (D)
|
November 5, 1918
|
New Hampshire (Class 3)
|
Jacob H. Gallinger (R)
|
Died August 17, 1918
|
Irving W. Drew (R)
|
September 2, 1918
|
George H. Moses (R)
|
November 5, 1918
|
Virginia (Class 2)
|
Thomas S. Martin (D)
|
Died November 12, 1919
|
Carter Glass (D)
|
November 18, 1919
|
Carter Glass (D)
|
November 2, 1920
|
Alabama (Class 3)
|
John H. Bankhead (D)
|
Died March 1, 1920
|
B. B. Comer (D)
|
March 5, 1920
|
J. Thomas Heflin (D)
|
November 2, 1920
|
New Mexico (Class 2)
|
Albert B. Fall (R)
|
Resigned March 3, 1921
|
Holm O. Bursum (R)
|
March 11, 1921
|
Holm O. Bursum (D)
|
September 20, 1921
|
Delaware (Class 1)
|
Josiah O. Wolcott (D)
|
Resigned July 2, 1921
|
T. Coleman du Pont (R)
|
July 7, 1921
|
Thomas F. Bayard Jr. (D)
|
November 7, 1922
|
Pennsylvania (Class 1)
|
Philander C. Knox (R)
|
Died October 12, 1921
|
William E. Crow (R)
|
October 17, 1921 – August 2, 1922 (died)
|
David A. Reed (R)
|
November 7, 1922
|
David A. Reed (R)
|
August 8, 1922
|
Pennsylvania (Class 3)
|
Boies Penrose (R)
|
Died December 31, 1921
|
George W. Pepper (R)
|
January 9, 1922
|
George W. Pepper (R)
|
November 7, 1922
|
Iowa (Class 2)
|
William S. Kenyon (R)
|
Resigned February 24, 1922
|
Charles A. Rawson (R)
|
February 24, 1922
|
Smith W. Brookhart (R)
|
November 7, 1922
|
Georgia (Class 3)
|
Thomas E. Watson (D)
|
Died September 26, 1922
|
Rebecca Felton (D)
|
November 21, 1922
|
Walter F. George (D)
|
November 7, 1922
|
Colorado (Class 2)
|
Samuel D. Nicholson (R)
|
Died March 24, 1923
|
Alva B. Adams (D)
|
May 17, 1923
|
Rice W. Means (R)
|
November 4, 1924
|
Connecticut (Class 3)
|
Frank B. Brandegee (R)
|
Died October 14, 1924
|
No appointment
|
Hiram Bingham III (R)
|
December 16, 1924
|
Idaho (Class 3)
|
Frank Gooding (R)
|
Died June 24, 1928
|
John Thomas (D)
|
June 30, 1928
|
John Thomas (R)
|
November 6, 1928
|
Ohio (Class 3)
|
Frank B. Willis (R)
|
Died March 30, 1928
|
Cyrus Locher (D)
|
April 5, 1928
|
Theodore E. Burton (R)
|
November 6, 1928
|
Ohio (Class 3)
|
Theodore E. Burton (R)
|
Died October 28, 1929
|
Roscoe C. McCulloch (R)
|
November 5, 1929
|
Robert J. Bulkley (D)
|
November 4, 1930
|
Arkansas (Class 3)
|
Thaddeus H. Caraway (D)
|
Died November 6, 1931
|
Hattie Caraway (D)
|
December 9, 1931
|
Hattie Caraway (D)
|
January 12, 1932
|
New Jersey (Class 2)
|
Dwight Morrow (R)
|
Died October 5, 1931
|
William Warren Barbour (R)
|
December 1, 1931
|
William Warren Barbour (R)
|
November 8, 1932
|
Georgia (Class 3)
|
William J. Harris (D)
|
Died April 18, 1932
|
John S. Cohen (D)
|
April 25, 1932
|
Richard Russell Jr. (D)
|
November 8, 1932
|
Vermont (Class 3)
|
Porter H. Dale (R)
|
Died October 6, 1933
|
Ernest W. Gibson (R)
|
November 21, 1933
|
Ernest W. Gibson (R)
|
January 16, 1934
|
Montana (Class 3)
|
Thomas J. Walsh (D)
|
Died March 4, 1933
|
John E. Erickson (D)
|
March 13, 1933
|
James E. Murray (D)
|
November 6, 1934
|
Tennessee (Class 2)
|
Cordell Hull (D)
|
Resigned March 4, 1933
|
Nathan L. Bachman (D)
|
March 4, 1933
|
Nathan L. Bachman (D)
|
November 6, 1934
|
New Mexico (Class 2)
|
Sam G. Bratton (D)
|
Resigned June 24, 1933
|
Carl A. Hatch (D)
|
October 10, 1933
|
Carl A. Hatch (D)
|
November 6, 1934
|
Louisiana (Class 2)
|
Huey Long (D)
|
Died September 10, 1935
|
Rose Long (D)
|
January 31, 1936
|
Rose Long (D)
|
April 21, 1936
|
Florida
(Class 1)
|
Park Trammell
|
Died May 8, 1936
|
Scott Loftin (D)
|
May 26, 1936
|
Charles O. Andrews (D)
|
November 3, 1936
|
Florida
(Class 3)
|
Duncan U. Fletcher
|
Died June 17, 1936
|
William Luther Hill (D)
|
July 1, 1936
|
Claude Pepper (D)
|
November 3, 1936
|
Arkansas (Class 3)
|
Joseph T. Robinson (D)
|
Died July 14, 1937
|
No appointment
|
John E. Miller (ID)[a]
|
November 15, 1937
|
Alabama (Class 3)
|
Hugo Black (D)
|
Resigned August 19, 1937
|
Dixie Graves (D)
|
August 20, 1937 – Jan. 10, 1938 (resigned)
|
Lister Hill (D)
|
April 26, 1938
|
Lister Hill (D)
|
January 11, 1938
|
Tennessee (Class 2)
|
Nathan L. Bachman (D)
|
Died April 23, 1937
|
George L. Berry (D)
|
May 6, 1937
|
Tom Stewart (D)
|
April 26, 1938
|
New York (Class 1)
|
Royal Copeland (D)
|
Died June 17, 1938
|
No appointment
|
James M. Mead (D)
|
November 8, 1938
|
South Dakota (Class 3)
|
Herbert E. Hitchcock (D)
|
Resigned November 8, 1938
|
No appointment
|
Gladys Pyle (R)
|
November 9, 1938
|
Texas (Class 2)
|
Morris Sheppard (D)
|
Died April 9, 1941
|
Andrew Houston (D)
|
April 21, 1941
|
W. Lee O'Daniel (D)
|
June 28, 1941
|
Mississippi (Class 2)
|
Pat Harrison (D)
|
Died June 22, 1941
|
James Eastland (D)
|
June 30, 1941
|
Wall Doxey (D)
|
September 23, 1941
|
South Carolina (Class 2)
|
James F. Byrnes (D)
|
Resigned July 17, 1941
|
Alva Lumpkin (D)
|
July 22, 1941 – August 1, 1941 (died)
|
Burnet Maybank (D)
|
November 5, 1941
|
Roger Peace (D)
|
August 5, 1941
|
Colorado (Class 3)
|
Alva B. Adams (D)
|
Died December 1, 1941
|
Eugene Millikin (R)
|
December 20, 1941
|
Eugene Millikin (R)
|
November 3, 1942
|
West Virginia (Class 2)
|
Matthew M. Neely (D)
|
Resigned January 12, 1941
|
Joseph Rosier (D)
|
January 13, 1941
|
Hugh Ike Shott (R)
|
November 3, 1942
|
Nevada (Class 1)
|
Key Pittman (D)
|
Died November 10, 1940
|
Berkeley Bunker (D)[b]
|
November 27, 1940
|
James G. Scrugham (D)
|
November 3, 1942
|
Indiana (Class 3)
|
Frederick Van Nuys (D)
|
Died January 25, 1944
|
Samuel D. Jackson (D)
|
January 28, 1944
|
William E. Jenner (R)
|
November 7, 1944
|
Oregon (Class 2)
|
Charles L. McNary (R)
|
Died February 25, 1944
|
Guy Cordon (R)
|
March 4, 1944
|
Guy Cordon (R)
|
November 7, 1944
|
New Jersey (Class 1)
|
William Warren Barbour (R)
|
Died November 22, 1943
|
Arthur Walsh (D)
|
November 26, 1943
|
H. Alexander Smith (R)
|
November 7, 1944
|
Massachusetts (Class 2)
|
Henry Cabot Lodge Jr. (R)
|
Resigned February 3, 1944
|
Sinclair Weeks (R)
|
February 8, 1944
|
Leverett Saltonstall (R)
|
November 7, 1944
|
North Dakota (Class 2)
|
John Moses (D)
|
Died March 3, 1945
|
Milton Young (R)
|
March 12, 1945
|
Milton Young (R)
|
June 25, 1946
|
Alabama (Class 2)
|
John H. Bankhead II (D)
|
Died June 12, 1946
|
George R. Swift (D)
|
June 15, 1946
|
John Sparkman (D)
|
November 5, 1946
|
California (Class 1)
|
Hiram Johnson (R)
|
Died August 6, 1945
|
William F. Knowland (R)
|
August 26, 1945
|
William F. Knowland (R)
|
November 5, 1946
|
Connecticut (Class 1)
|
Francis T. Maloney (D)
|
Died January 16, 1945
|
Thomas C. Hart (R)
|
February 15, 1945
|
Raymond E. Baldwin (R)
|
November 5, 1946
|
Idaho (Class 2)
|
John Thomas (R)
|
Died November 10, 1945
|
Charles C. Gossett (D)
|
November 17, 1945
|
Henry Dworshak (R)
|
November 5, 1946
|
Kentucky (Class 2)
|
Happy Chandler (D)
|
Resigned November 1, 1945
|
William A. Stanfill (R)
|
November 19, 1945
|
John Sherman Cooper (R)
|
November 5, 1946
|
Ohio (Class 1)
|
Harold H. Burton (R)
|
Resigned September 30, 1945
|
James W. Huffman (D)
|
October 8, 1945
|
Kingsley A. Taft (R)
|
November 5, 1946
|
Virginia (Class 2)
|
Carter Glass (D)
|
Died May 28, 1946
|
Thomas G. Burch (D)
|
May 31, 1946
|
A. Willis Robertson (D)
|
November 5, 1946
|
Mississippi (Class 1)
|
Theodore G. Bilbo (D)
|
Died August 24, 1947
|
No appointment
|
John C. Stennis (D)
|
November 5, 1947
|
New York (Class 3)
|
Robert F. Wagner (D)
|
Resigned June 28, 1949
|
John Foster Dulles (R)
|
July 7, 1949
|
Herbert H. Lehman (D)
|
November 8, 1949
|
North Carolina (Class 2)
|
J. Melville Broughton (D)
|
Died March 6, 1949
|
Frank Porter Graham (D)
|
March 29, 1949
|
Willis Smith (D)
|
November 7, 1950
|
Kansas (Class 3)
|
Clyde M. Reed (R)
|
Died November 8, 1949
|
Harry Darby (R)
|
December 2, 1949
|
Frank Carlson (R)
|
November 7, 1950
|
Idaho (Class 2)
|
Bert H. Miller (D)
|
Died October 8, 1949
|
Henry Dworshak (R)
|
October 14, 1949
|
Henry Dworshak (R)
|
November 7, 1950
|
Connecticut (Class 3)
|
Brien McMahon (D)
|
Died July 28, 1952
|
William A. Purtell (R)
|
August 29, 1952
|
Prescott Bush (R)
|
November 4, 1952
|
Kentucky (Class 2)
|
Virgil Chapman (D)
|
Died March 8, 1951
|
Thomas R. Underwood (D)
|
March 19, 1951
|
John Sherman Cooper (R)
|
November 4, 1952
|
Michigan (Class 1)
|
Arthur Vandenberg (R)
|
Died April 18, 1951
|
Blair Moody (D)
|
April 23, 1951
|
Charles E. Potter (R)
|
November 4, 1952
|
Nebraska (Class 2)
|
Kenneth S. Wherry (R)
|
Died November 29, 1951
|
Fred A. Seaton (R)
|
December 10, 1951
|
Dwight Griswold (R)
|
November 4, 1952
|
California (Class 3)
|
Richard Nixon (R)
|
Resigned January 1, 1953 Elected as vice president
|
Thomas Kuchel (R)
|
January 2, 1953
|
Thomas Kuchel (R)
|
November 2, 1954
|
North Carolina (Class 2)
|
Willis Smith (D)
|
Died June 26, 1953
|
Alton Lennon (D)
|
July 15, 1953
|
Kerr Scott (D)
|
November 2, 1954
|
North Carolina (Class 3)
|
Clyde R. Hoey (D)
|
Died May 12, 1954
|
Sam Ervin (D)
|
June 5, 1954
|
Sam Ervin (D)
|
Nebraska (Class 1)
|
Hugh Butler (R)
|
Died July 1, 1954
|
Sam Reynolds (R)
|
July 7, 1954
|
Roman Hruska (R)
|
November 2, 1954
|
Nebraska (Class 2)
|
Dwight Griswold (R)
|
Died April 12, 1954
|
Eva Bowring (R)
|
April 26, 1954
|
Hazel Abel (R)
|
Kentucky (Class 2)
|
Alben Barkley (D)
|
Died April 30, 1956
|
Robert Humphreys (D)
|
June 25, 1956
|
John Sherman Cooper (R)
|
November 6, 1956
|
West Virginia (Class 1)
|
Harley M. Kilgore (D)
|
Died February 28, 1956
|
William Laird III (D)
|
March 13, 1956
|
Chapman Revercomb (R)
|
November 6, 1956
|
South Carolina (Class 2)
|
Strom Thurmond (D)
|
Resigned April 4, 1956
|
Thomas A. Wofford (D)
|
April 5, 1956
|
Strom Thurmond (D)
|
November 6, 1956
|
Texas (Class 1)
|
Price Daniel (D)
|
Resigned January 14, 1957
|
William Blakley (D)
|
January 17, 1957
|
Ralph Yarborough (D)
|
April 2, 1957
|
Wisconsin (Class 1)
|
Joseph McCarthy (R)
|
Died May 2, 1957
|
No appointment
|
William Proxmire (D)
|
August 27, 1957
|
West Virginia (Class 2)
|
Matthew M. Neely (D)
|
Died January 18, 1958
|
John D. Hoblitzell Jr. (R)
|
January 25, 1958
|
Jennings Randolph (D)
|
November 4, 1958
|
North Carolina (Class 2)
|
W. Kerr Scott (D)
|
Died April 16, 1958
|
B. Everett Jordan (D)
|
April 19, 1958
|
B. Everett Jordan (D)
|
November 4, 1958
|
North Dakota (Class 1)
|
William Langer (R)
|
Died November 8, 1959
|
Clarence Brunsdale (R)
|
November 19, 1959
|
Quentin Burdick (D-NPL)
|
June 28, 1960
|
Missouri (Class 1)
|
Thomas C. Hennings Jr. (D)
|
Died September 13, 1960
|
Edward V. Long (D)
|
September 23, 1960
|
Edward V. Long (D)
|
November 8, 1960
|
Oregon (Class 2)
|
Richard Neuberger (D)
|
Died March 9, 1960
|
Hall Lusk (D)
|
March 16, 1960
|
Maurine Neuberger (D)
|
November 8, 1960
|
Texas (Class 2)
|
Lyndon Johnson (D)
|
Resigned January 3, 1961 Elected as vice president
|
William Blakley (D)
|
January 3, 1961
|
John Tower (R)
|
May 27, 1961
|
Massachusetts (Class 1)
|
John F. Kennedy (D)
|
Resigned December 22, 1960 Elected as president
|
Benjamin A. Smith II (D)
|
December 27, 1960
|
Ted Kennedy (D)
|
November 6, 1962
|
New Hampshire (Class 2)
|
Styles Bridges (R)
|
Died November 26, 1961
|
Maurice J. Murphy Jr. (R)
|
December 7, 1961
|
Thomas McIntyre (D)
|
November 6, 1962
|
Kansas (Class 2)
|
Andrew Schoeppel (R)
|
Died January 21, 1962
|
James Pearson (R)
|
January 31, 1962
|
James Pearson (R)
|
November 6, 1962
|
Idaho (Class 2)
|
Henry Dworshak (R)
|
Died July 23, 1962
|
Len Jordan (R)
|
August 6, 1962
|
Len Jordan (R)
|
November 6, 1962
|
Wyoming (Class 2)
|
Edwin Keith Thomson (R)[c]
|
Died December 9, 1960
|
John J. Hickey (D)
|
January 3, 1961
|
Milward Simpson (R)
|
November 6, 1962
|
New Mexico (Class 1)
|
Dennis Chavez (D)
|
Died November 18, 1962
|
Edwin Mechem (R)
|
November 30, 1962
|
Joseph Montoya (D)
|
November 3, 1964
|
Oklahoma (Class 2)
|
Robert S. Kerr (D)
|
Died January 1, 1963
|
J. Howard Edmondson (D)
|
January 6, 1963
|
Fred R. Harris (D)
|
November 3, 1964
|
Tennessee (Class 2)
|
Estes Kefauver (D)
|
Died August 10, 1963
|
Herbert Walters (D)
|
August 20, 1963
|
Ross Bass (D)
|
November 3, 1964
|
South Carolina (Class 3)
|
Olin Johnston (D)
|
Died April 18, 1965
|
Donald Russell (D)
|
April 22, 1965
|
Fritz Hollings (D)
|
November 8, 1966
|
Virginia (Class 1)
|
Harry F. Byrd Sr. (D)
|
Resigned November 10, 1965
|
Harry F. Byrd Jr. (D)
|
November 12, 1965
|
Harry F. Byrd Jr. (D)
|
November 8, 1966
|
Alaska (Class 2)
|
Bob Bartlett (D)
|
Died December 11, 1968
|
Ted Stevens (R)
|
December 24, 1968
|
Ted Stevens (R)
|
November 3, 1970
|
Illinois (Class 3)
|
Everett Dirksen (R)
|
Died September 7, 1969
|
Ralph Tyler Smith (R)
|
September 17, 1969
|
Adlai Stevenson III (D)
|
November 3, 1970
|
Vermont (Class 1)
|
Winston L. Prouty (R)
|
Died September 10, 1971
|
Robert Stafford (R)
|
September 16, 1971
|
Robert Stafford (R)
|
January 7, 1972
|
Georgia (Class 2)
|
Richard Russell Jr. (D)
|
Died January 21, 1971
|
David H. Gambrell (D)
|
February 1, 1971
|
Sam Nunn (D)
|
November 7, 1972
|
New Hampshire (Class 3)
|
Failure to elect by January 3, 1975[d]
|
Norris H. Cotton (R)
|
August 8, 1975
|
John A. Durkin (D)
|
September 16, 1975
|
Minnesota (Class 1)
|
Hubert Humphrey (D)
|
Died January 13, 1978
|
Muriel Humphrey (D)
|
January 25, 1978
|
David Durenberger (R)
|
November 7, 1978
|
Alabama (Class 3)
|
James Allen (D)
|
Died June 1, 1978
|
Maryon Pittman Allen (D)
|
June 8, 1978
|
Donald Stewart (D)
|
November 7, 1978
|
Washington (Class 1)
|
Henry M. Jackson (D)
|
Died September 1, 1983
|
Daniel J. Evans (R)
|
September 8, 1983
|
Daniel J. Evans (R)
|
November 8, 1983
|
North Carolina (Class 3)
|
John Porter East (R)
|
Died June 29, 1986
|
Jim Broyhill (R)
|
July 14, 1986
|
Terry Sanford (D)
|
November 8, 1986
|
Indiana (Class 3)
|
Dan Quayle (R)
|
Resigned January 3, 1989 Elected as vice president
|
Dan Coats (R)
|
January 3, 1989
|
Dan Coats (R)
|
November 6, 1990
|
Hawaii (Class 1)
|
Spark Matsunaga (D)
|
Died April 15, 1990
|
Daniel Akaka (D)
|
May 16, 1990
|
Daniel Akaka (D)
|
November 6, 1990
|
Pennsylvania (Class 1)
|
H. John Heinz III (R)
|
Died April 4, 1991
|
Harris Wofford (D)
|
May 9, 1991
|
Harris Wofford (D)
|
November 5, 1991
|
California (Class 1)
|
Pete Wilson (R)
|
Resigned January 7, 1991
|
John Seymour (R)
|
January 10, 1991
|
Dianne Feinstein (D)
|
November 3, 1992
|
North Dakota (Class 1)
|
Quentin Burdick (D-NPL)
|
Died September 8, 1992
|
Jocelyn Burdick (D-NPL)
|
September 16, 1992
|
Kent Conrad (D-NPL)
|
December 4, 1992
|
Texas (Class 1)
|
Lloyd Bentsen (D)
|
Resigned January 20, 1993
|
Bob Krueger (D)
|
January 21, 1993
|
Kay Bailey Hutchison (R)
|
June 5, 1993
|
Tennessee (Class 2)
|
Al Gore (D)
|
Resigned January 3, 1993 Elected as vice president
|
Harlan Mathews (D)
|
January 3, 1993
|
Fred Thompson (R)
|
November 8, 1994
|
Oklahoma (Class 2)
|
David Boren (D)
|
Resigned November 15, 1994
|
No appointment[e]
|
Jim Inhofe (R)
|
November 8, 1994
|
Oregon (Class 3)
|
Bob Packwood (R)
|
Resigned October 1, 1995
|
No appointment
|
Ron Wyden (D)
|
January 30, 1996
|
Kansas (Class 3)
|
Bob Dole (R)
|
Resigned June 11, 1996
|
Sheila Frahm (R)
|
June 11, 1996
|
Sam Brownback (R)
|
November 5, 1996
|
Georgia (Class 3)
|
Paul Coverdell (R)
|
Died July 18, 2000
|
Zell Miller (D)
|
July 24, 2000
|
Zell Miller (D)
|
November 7, 2000
|
Missouri (Class 1)
|
Mel Carnahan (D)[c]
|
Died October 16, 2000
|
Jean Carnahan (D)
|
January 3, 2001
|
Jim Talent (R)
|
November 5, 2002
|
Wyoming (Class 1)
|
Craig L. Thomas (R)
|
Died June 4, 2007
|
John Barrasso (R)
|
June 25, 2007
|
John Barrasso (R)
|
November 4, 2008
|
Mississippi (Class 1)
|
Trent Lott (R)
|
Resigned December 18, 2007
|
Roger Wicker (R)
|
December 31, 2007
|
Roger Wicker (R)
|
November 4, 2008
|
Massachusetts (Class 1)
|
Ted Kennedy (D)
|
Died August 25, 2009
|
Paul G. Kirk (D)
|
September 24, 2009
|
Scott Brown (R)
|
January 19, 2010
|
Illinois (Class 3)
|
Barack Obama (D)
|
Resigned November 16, 2008 Elected as president
|
Roland Burris (D)
|
January 12, 2009
|
Mark Kirk (R)
|
November 2, 2010
|
Delaware (Class 2)
|
Joe Biden (D)
|
Resigned January 15, 2009 Elected as vice president
|
Ted Kaufman (D)
|
January 16, 2009
|
Chris Coons (D)
|
November 2, 2010
|
New York (Class 1)
|
Hillary Clinton (D)
|
Resigned January 21, 2009
|
Kirsten Gillibrand (D)
|
January 27, 2009
|
Kirsten Gillibrand (D)
|
November 2, 2010
|
West Virginia (Class 1)
|
Robert Byrd (D)
|
Died June 28, 2010
|
Carte Goodwin (D)
|
July 20, 2010
|
Joe Manchin (D)
|
November 2, 2010
|
Massachusetts (Class 2)
|
John Kerry (D)
|
Resigned February 1, 2013
|
Mo Cowan (D)
|
February 1, 2013
|
Ed Markey (D)
|
June 25, 2013
|
New Jersey (Class 2)
|
Frank Lautenberg (D)
|
Died June 3, 2013
|
Jeffrey Chiesa (R)
|
June 10, 2013
|
Cory Booker (D)
|
October 16, 2013
|
South Carolina (Class 3)
|
Jim DeMint (R)
|
Resigned January 1, 2013
|
Tim Scott (R)
|
January 2, 2013
|
Tim Scott (R)
|
November 4, 2014
|
Hawaii (Class 3)
|
Daniel Inouye (D)
|
Died December 17, 2012
|
Brian Schatz (D)
|
December 26, 2012
|
Brian Schatz (D)
|
November 4, 2014
|
Oklahoma (Class 3)
|
Tom Coburn (R)
|
Resigned January 3, 2015
|
No appointment[f]
|
James Lankford (R)
|
November 4, 2014
|
Alabama (Class 2)
|
Jeff Sessions (R)
|
Resigned February 8, 2017
|
Luther Strange (R)
|
February 9, 2017
|
Doug Jones (D)
|
December 12, 2017
|
Minnesota (Class 2)
|
Al Franken (D)
|
Resigned January 2, 2018
|
Tina Smith (D)
|
January 3, 2018
|
Tina Smith (D)
|
November 6, 2018
|
Mississippi (Class 2)
|
Thad Cochran (R)
|
Resigned April 1, 2018
|
Cindy Hyde-Smith (R)
|
April 2, 2018
|
Cindy Hyde-Smith (R)
|
November 6, 2018
|
Arizona (Class 3)
|
John McCain (R)
|
Died August 25, 2018
|
Jon Kyl (R)
|
September 4, 2018 – December 31, 2018 (resigned)
|
Mark Kelly (D)
|
November 3, 2020
|
Martha McSally (R)
|
January 3, 2019
|
Georgia (Class 3)
|
Johnny Isakson (R)
|
Resigned December 31, 2019
|
Kelly Loeffler (R)
|
January 6, 2020
|
Raphael Warnock (D)
|
January 5, 2021
|
California (Class 3)
|
Kamala Harris (D)
|
Resigned January 18, 2021 Elected as vice president
|
Alex Padilla (D)
|
January 20, 2021
|
Alex Padilla (D)
|
November 8, 2022
|
Oklahoma (Class 2)
|
Jim Inhofe (R)
|
Resigned January 3, 2023
|
No appointment[g]
|
Markwayne Mullin (R)
|
November 8, 2022
|
Nebraska (Class 2)
|
Ben Sasse (R)
|
Resigned January 8, 2023
|
Pete Ricketts (R)
|
January 12, 2023
|
TBD
|
November 5, 2024
|
California (Class 1)
|
Dianne Feinstein (D)
|
Died September 29, 2023
|
Laphonza Butler (D)
|
October 3, 2023
|
TBD
|
November 5, 2024
|
State
|
Senator
|
Vacancy event
|
Senator
|
Date
|
Senator
|
Date
|
Original
|
Appointee
|
Election winner
|