1871 |- | Georgia (2) | nowrap | Homer V. M. Miller (D) | February 28, 1871 |- | Maine (2) | nowrap | William P. Fessenden (R) | Died September 8, 1869.Successor appointed October 30, 1869.Successor was subsequently elected January 19, 1870 to finish the term. | nowrap | Lot M. Morrill (R) | October 30, 1869 |- | Iowa (2) | nowrap | James W. Grimes (R) | Resigned December 6, 1869, because of failing health.Successor elected January 18, 1870. | nowrap | James B. Howell (R) | January 18, 1870 |- | Minnesota (2) | nowrap | Daniel S. Norton (R) | Died July 13, 1870.Successor appointed July 15, 1870. | nowrap | William Windom (R) | July 15, 1870 |- | Missouri (3) | nowrap | Charles D. Drake (R) | Resigned December 19, 1870, after being appointed chief justice of the United States Court of Claims.Successor appointed December 19, 1870. | nowrap | Daniel T. Jewett (R) | December 19, 1870 |- | Missouri (3) | nowrap | Daniel T. Jewett (R) | Interim appointee retired.Successor elected January 20, 1871. | nowrap | Francis P. Blair Jr. (D) | January 20, 1871 |- | Minnesota (2) | nowrap | William Windom (R) | Successor elected January 22, 1871. | nowrap | Ozora P. Stearns (R) | January 22, 1871 |} House of Representatives Replacements: 14 Democratic: 3 seat net loss Republican: 3 seat net gain Conservative Party of Virginia: no net change Deaths: 6 Resignations: 6 Contested election: 8 Seats of newly re-admitted states: 17 Total seats with changes: 44 |- | | Vacant | style="font-size:80%" | Contested election with J.P. Reed. Reed was never seated. House declared Hoge entitled to seat. | nowrap | Solomon L. Hoge (R) | April 8, 1869 |- | | Vacant | style="font-size:80%" | Territory organized in previous congress and remained vacant until December 6, 1869 | nowrap | Stephen F. Nuckolls (D) | December 6, 1869 |- | | rowspan=8 | Vacant | rowspan=8 style="font-size:80%" | Virginia re-admitted into the Union | nowrap | James H. Platt Jr. (R) | rowspan=3 | January 26, 1870 |- | | nowrap | Charles H. Porter (R) |- | | nowrap | George Booker (C) |- | | nowrap | Robert Ridgway (C) | rowspan=2 | January 27, 1870 |- | | nowrap | William Milnes Jr. (C) |- | |