Columns: District | Vacator | Reason for change | Successor | Date successor seated
New Mexico Territory At-large | Vacant | Vacancy in term | Charles P. Clever (D) | September 2, 1867 | Arkansas 1st | Vacant | Arkansas re-admitted into the Union | Logan H. Roots (R) | June 22, 1868 | Arkansas 2nd | Vacant | Arkansas re-admitted into the Union | James M. Hinds (R) | June 22, 1868 | Arkansas 3rd | Vacant | Arkansas re-admitted into the Union | Thomas Boles (R) | June 22, 1868 | Florida At-large | Vacant | Florida re-admitted into the Union | Charles M. Hamilton (R) | July 1, 1868 | North Carolina 4th | Vacant | North Carolina re-admitted into the Union | John T. Deweese (R) | July 6, 1868 | North Carolina 7th | Vacant | North Carolina re-admitted into the Union | Alexander H. Jones (R) | July 6, 1868 | North Carolina 3rd | Vacant | North Carolina re-admitted into the Union | Oliver H. Dockery (R) | July 13, 1868 | North Carolina 6th | Vacant | North Carolina re-admitted into the Union | Nathaniel Boyden (C) | July 13, 1868 | North Carolina 1st | Vacant | North Carolina re-admitted into the Union | John R. French (R) | July 15, 1868 | Louisiana 1st | Vacant | Louisiana re-admitted into the Union | J. Hale Sypher (R) | July 18, 1868 | Louisiana 2nd | Vacant | Louisiana re-admitted into the Union | James Mann (D) | July 18, 1868 | Louisiana 3rd | Vacant | Louisiana re-admitted into the Union | Joseph P. Newsham (R) | July 18, 1868 | Louisiana 4th | Vacant | Louisiana re-admitted into the Union | Michel Vidal (R) | July 18, 1868 | Louisiana 5th | Vacant | Louisiana re-admitted into the Union | W. Jasper Blackburn (R) | July 18, 1868 | South Carolina 1st | Vacant | South Carolina re-admitted into the Union | Benjamin F. Whittemore (R) | July 18, 1868 | South Carolina 2nd | Vacant | South Carolina re-admitted into the Union | Christopher C. Bowen (R) | July 18, 1868 | South Carolina 4th | Vacant | South Carolina re-admitted into the Union | James H. Goss (R) | July 18, 1868 | North Carolina 5th | Vacant | North Carolina re-admitted into the Union | Israel G. Lash (R) | July 20, 1868 | Alabama 2nd | Vacant | Alabama re-admitted into the Union | Charles W. Buckley (R) | July 21, 1868 | Alabama 3rd | Vacant | Alabama re-admitted into the Union | Benjamin W. Norris (R) | July 21, 1868 | Alabama 4th | Vacant | Alabama re-admitted into the Union | Charles W. Pierce (R) | July 21, 1868 | Alabama 5th | Vacant | Alabama re-admitted into the Union | John B. Callis (R) | July 21, 1868 | Alabama 6th | Vacant | Alabama re-admitted into the Union | Thomas Haughey (R) | July 21, 1868 | Alabama 1st | Vacant | Alabama re-admitted into the Union | Francis W. Kellogg (R) | July 22, 1868 | Georgia 1st | Vacant | Georgia re-admitted into the Union | Joseph W. Clift (R) | July 25, 1868 | Georgia 2nd | Vacant | Georgia re-admitted into the Union | Nelson Tift (D) | July 25, 1868 | Georgia 3rd | Vacant | Georgia re-admitted into the Union | William P. Edwards (R) | July 25, 1868 | Georgia 4th | Vacant | Georgia re-admitted into the Union | Samuel F. Gove (R) | July 25, 1868 | Georgia 5th | Vacant | Georgia re-admitted into the Union | Charles H. Prince (R) | July 25, 1868 | Georgia 7th | Vacant | Georgia re-admitted into the Union | Pierce M. B. Young (D) | July 25, 1868 | North Carolina 2nd | Vacant | North Carolina re-admitted into the Union | David Heaton (R) | July 25, 1868 | South Carolina 1st | Vacant | South Carolina re-admitted into the Union | Manuel S. Corley (R) | July 25, 1868 | Kentucky 3rd | Elijah Hise (D) | Died May 8, 1867 | Jacob Golladay (D) | December 5, 1867 | Pennsylvania 12th | Charles Denison (D) | Died June 27, 1867 | George W. Woodward (D) | November 21, 1867 | Missouri 3rd | Thomas E. Noell (D) | Died October 3, 1867 | James R. McCormick (D) | December 17, 1867 | Ohio 8th | Cornelius S. Hamilton (R) | Killed by insane son December 22, 1867 | John Beatty (R) | February 5, 1868 | Pennsylvania 13th | George W. Morgan (D) | Lost contested election June 3, 1868 | Columbus Delano (R) | June 3, 1868 | Pennsylvania 9th | Thaddeus Stevens (R) | Died August 11, 1868 | Oliver J. Dickey (R) | December 7, 1868 | Pennsylvania 20th | Darwin A. Finney (R) | Died August 25, 1868 | S. Newton Pettis (R) | December 7, 1868 | Louisiana 2nd | James Mann (D) | Died August 26, 1868 | Vacant | Not filled this term | Arkansas 2nd | James M. Hinds (R) | Assassinated October 22, 1868 | James T. Elliott (R) | January 13, 1869