. Amasa Cobb (R) . Charles A. Eldredge (D) . Philetus Sawyer (R) . Cadwallader C. Washburn (R) Non-voting members . Coles Bashford (I) . George M. Chilcott (R) . Walter A. Burleigh (R) . Edward D. Holbrook (D) . James M. Cavanaugh (D) . Charles P. Clever (D), from September 2, 1867 - February 20, 1869 J. Francisco Chaves (R), from February 20, 1869 . William H. Hooper (D) . Alvan Flanders (R) Changes in membership The count below reflects changes from the beginning of the first session of this Congress. Senate Replacements: 3 Democratic: 0 seat net loss Republican: 0 seat net gain Deaths: 1 Resignations: 2 Interim appointments: 1 Seats from newly re-admitted states: 12 Total seats with changes: 16 |- | Delaware (1) | nowrap | George R. Riddle (D) | Died March 29, 1867.Successor appointed April 5, 1867.Appointee was subsequently elected January 19, 1869, to finish the term. | nowrap | James A. Bayard Jr. (D) | April 5, 1867 |- | Kentucky (2) | nowrap | James Guthrie (D) | Resigned February 7, 1868, because of failing health.Successor elected February 19, 1868. | nowrap | Thomas C. McCreery (D) | February 19, 1868 |- | Maryland (3) | Vacant | Filled vacancy caused by action of the Senate in declining to permit Philip F. Thomas to qualify.Successor elected March 7, 1868. | nowrap | George Vickers (D) | March 7, 1868 |- | Florida (1) | Vacant | Florida re-admitted to the Union | nowrap | Adonijah Welch (R) | June 17, 1868 |- | Arkansas (2) | rowspan=2 | Vacant | rowspan=2 | Arkansas re-admitted to the Union | nowrap | Alexander McDonald (R) | June 22, 1868 |- | Arkansas (3) | nowrap | Benjamin F. Rice (R) | June 23, 1868 |- | Florida (3) | Vacant | Florida re-admitted to the Union | nowrap | Thomas W. Osborn (R) | June 25, 1868 |- | Louisiana (2) | rowspan=2 | Vacant | rowspan=2 | Louisiana re-admitted to the Union | nowrap | John S. Harris (R) | July 8, 1868 |- | Louisiana (3) | nowrap | William P. Kellogg (R) | July 9, 1868 |- | Alabama (2) | rowspan=2 | Vacant | rowspan=2 | Alabama re-admitted to the Union | nowrap | Willard Warner (R) | rowspan=3 | July 13, 1868 |- | Alabama (3) | nowrap |