| December 4, 1971 |- | | nowrap| James G. Fulton (R) | style="font-size:80%" | Died October 6, 1971 | nowrap | William Sheldrick Conover (R) | April 25, 1972 |- | | nowrap| Charlotte Thompson Reid (R) | style="font-size:80%" | Resigned October 7, 1971, after being appointed to the Federal Communications Commission | nowrap | Cliffard D. Carlson (R) | April 4, 1972 |- | | | George W. Andrews (D) | style="font-size:80%" | Died December 25, 1971 | | Elizabeth B. Andrews (D) | April 4, 1972 |- | | | F. Bradford Morse (R) | style="font-size:80%" | Resigned May 1, 1972, after being appointed Undersecretary General for Political and General Assembly Affairs at the United Nations | Vacant | Not filled this congress |- | | | Edwin Edwards (D) | style="font-size:80%" | Resigned after being elected Governor of Louisiana May 9, 1972 | | John Breaux (D) | September 30, 1972 |- | | | Richard Harding Poff (R) | style="font-size:80%" | Resigned after being appointed as a judge of the Supreme Court of Virginia | | M. Caldwell Butler (R) | November 7, 1972 |- | | | William Fitts Ryan (D) | style="font-size:80%" | Died September 17, 1972. | rowspan=4 |Vacant | rowspan=4 |Not filled this congress |- | | | Frank T. Bow (R) | style="font-size:80%" | Died November 13, 1972. |- | | | George W. Collins (D) | style="font-size:80%" | Died in a plane crash December 8, 1972. |- | | | Nick Begich (D) | style="font-size:80%" | He and Hale Boggs were lost in a plane crash October 16, 1972. Presumptive death certificate for Rep. Begich was issued December 29, 1972. |} Committees Senate Aeronautical and Space Sciences (Chair: Clinton P. Anderson; Ranking Member: Carl T. Curtis) Agriculture and Forestry (Chair: Herman E. Talmadge; Ranking Member: Jack Miller) Appropriations (Chair: Allen J. Ellender; Ranking Member: Milton R. Young) Armed Services (Chair: John C. Stennis; Ranking Member: Margaret Chase Smith) Banking, Housing and Currency (Chair: John J. Sparkman; Ranking Member: John G. Tower) Commerce (Chair: Warren G. Magnuson; Ranking Member: Norris Cotton) District of Columbia (Chair: Thomas F. Eagleton; Ranking Member: Charles Mathias) Equal Educational Opportunity (Select) (Chair: Walter Mondale) Finance (Chair: Russell B. Long; Ranking Member: Wallace F. Bennett) Foreign Relations (Chair: J. William Fulbright; Ranking Member: George D. Aiken) Government Operations (Chair: John Little McClellan; Ranking Member: Karl E.