(R) | December 31, 1974 |- | Florida(3) | | Edward Gurney (R) | Resigned December 31, 1974, in an influence peddling scandal.Successor appointed January 1, 1975, having already been elected to the next term. | | Richard Stone (D) | January 1, 1975 |- | Arkansas(3) | | J. William Fulbright (D) | Resigned December 31, 1974.Successor began next term. | Vacant | Not filled this Congress |- | North Carolina(3) | | Sam Ervin (D) | Resigned December 31, 1974.Successor began next term. | Vacant | Not filled this Congress |} House of Representatives There were three deaths before this Congress began. |- | | Vacant | style="font-size:80%" | Rep. George W. Collins (D) died during previous congress. | | Cardiss Collins (D) | June 5, 1973 |- | | Vacant | style="font-size:80%" | Nick Begich (D) and Hale Boggs (D) were lost in a plane crash, and the estate of Rep. Begich was issued a presumptive death certificate from the State of Alaska during previous congress. Both were also declared dead pursuant to H. R. Res. 1 issued January 3, 1973. | | Don Young (R) | nowrap | March 6, 1973 |- | | | Hale Boggs (D) | style="font-size:80%" | Nick Begich (D) and Hale Boggs (D) were lost in a plane crash during previous congress. Both were declared dead pursuant to H. R. Res. 1 issued January 3, 1973. | | Lindy Boggs (D) | March 20, 1973 |- | | | Donald Riegle (R) | style="font-size:80%" | Switched party affiliation. | | Donald Riegle (D) | February 27, 1973 |- | | nowrap| William Oswald Mills (R) | style="font-size:80%" | Committed suicide May 24, 1973. | nowrap | Robert Bauman (R) | August 21, 1973 |- | nowrap | | | John P. Saylor (R) | style="font-size:80%" | Died October 28, 1973. | | John Murtha (D) | nowrap | February 5, 1974 |- | | | Gerald Ford (R) | style="font-size:80%" | Resigned December 6, 1973, to become vice president. | | Richard Vander Veen (D) | February 18, 1974 |- | | nowrap | Charles M. Teague (R) | style="font-size:80%" | Died January 1, 1974. | nowrap | Robert J. Lagomarsino (R) | March 5, 1974 |- | | | William J. Keating (R) | style="font-size:80%" | Resigned January 3, 1974. | | Tom Luken (D) | March 5, 1974 |-