. John R. Tucker (D) . John T. Harris (D) . Eppa Hutton II (D) . James Richmond (D) West Virginia . Benjamin Wilson (D) . Benjamin F. Martin (D) . John E. Kenna (D) Wisconsin . Charles G. Williams (R) . Lucien B. Caswell (R) . George Hazelton (R) . Peter V. Deuster (D) . Edward S. Bragg (D) . Gabriel Bouck (D) . Herman L. Humphrey (R) . Thaddeus C. Pound (R) Non-voting delegates . John G. Campbell (D) . Granville G. Bennett (R) . George Ainslie (D) . Martin Maginnis (D) . Mariano S. Otero (R) . George Q. Cannon (R) . Thomas H. Brents (R) . Stephen Downey (R) Changes in membership The count below reflects changes from the beginning of the first session of this Congress. Senate Replacements: 4 Democratic: no net change Republican: no net change Deaths: 3 Resignations: 1 Interim appointments: 2 Total seats with changes: 5 |- | New Hampshire (3) | Vacant | Legislature had failed to elect.An interim successor was appointed March 13, 1879. | nowrap | Charles H. Bell (R) | March 13, 1879 |- | New Hampshire (3) | nowrap | Charles H. Bell (R) | Successor elected June 18, 1879, but did not begin service until June 20, 1879, for unknown reasons. | nowrap | Henry W. Blair (R) | June 20, 1879 |- | Michigan (1) | nowrap | Zachariah Chandler (R) | Died November 1, 1879.Successor appointed November 17, 1879, to continue the term.Appointee was elected January 19, 1881, to finish the term. | nowrap | Henry P. Baldwin (R) | November 17, 1879 |- | Alabama (3) | nowrap | George S. Houston (D) | Died December 31, 1879.Successor appointed January 7, 1880, to continue the term. | nowrap | Luke Pryor (D) | January 7, 1880 |- | Georgia (3) | nowrap | John B. Gordon (D) | Resigned May 26, 1880, to promote building of the Georgia Pacific Railway.Successor elected May 26, 1880. | nowrap | Joseph E. Brown (D) | May 26, 1880 |- | Alabama (3) | nowrap | Luke Pryor (D) | Successor elected November 23, 1880. | nowrap | James L. Pugh (D) | November 24, 1880 |- | Wisconsin (3) | nowrap | Matthew H. Carpenter (R) | Died February 24, 1881. | Vacant | Not filled this term |} House of Representatives Replacements: 8 Democratic: 1