. Omar Burleson (D) . Bob Price (R) . George H. Mahon (D) . Henry B. González (D) . O. C. Fisher (D) . Robert R. Casey (D) . Abraham Kazen (D) Utah . Laurence J. Burton (R) . Sherman P. Lloyd (R) Vermont . Robert Stafford (R) Virginia . Thomas N. Downing (D) . Porter Hardy Jr. (D) . David E. Satterfield III (D) . Watkins Abbitt (D) . William M. Tuck (D) . Richard Harding Poff (R) . John Otho Marsh Jr. (D) . William L. Scott (R) . William C. Wampler (R) . Joel Broyhill (R) Washington . Thomas Pelly (R) . Lloyd Meeds (D) . Julia Butler Hansen (D) . Catherine Dean May (R) . Tom Foley (D) . Floyd Hicks (D) . Brock Adams (D) West Virginia . Arch A. Moore Jr. (R) . Harley Orrin Staggers (D) . John M. Slack Jr. (D) . Ken Hechler (D) . James Kee (D) Wisconsin . Henry C. Schadeberg (R) . Robert Kastenmeier (D) . Vernon Wallace Thomson (R) . Clement J. Zablocki (D) . Henry S. Reuss (D) . William A. Steiger (R) . Melvin Laird (R) . John W. Byrnes (R) . Glenn Robert Davis (R) . Alvin O'Konski (R) Wyoming . William Henry Harrison III (R) Non-voting member . Santiago Polanco-Abreu (Resident Commissioner) (PPD) Changes in membership The count below reflects changes from the beginning of the first session of this Congress. Senate Replacements: 4 Democratic: 2 seat net loss Republican: 2 seat net gain Deaths: 2 Resignations: 2 Total seats with changes: 5 |- | Oregon(2) | Vacant | Delayed taking seat to finish term as Governor of Oregon. | | Mark Hatfield (R) | January 10, 1967 |- | New York(1) | | Robert F. Kennedy (D) | Assassinated June 6, 1968, while campaigning for the Democratic presidential nomination.Successor was appointed to continue the term. | | Charles Goodell (R) | September 10, 1968 |- | Alaska(2) | | Bob Bartlett (D) | Died December 11, 1968Successor was appointed to continue the term. | | Ted Stevens (R) | December 24, 1968 |- | Kentucky(3) | | Thruston Ballard Morton (R) | Resigned December 16, 1968, to give successor preferential seniority, having already retired.Successor was appointed to finish the term, having already been elected to the next term. | | Marlow Cook (R) | December 17, 1968 |- | Missouri(3) | |