List of United States senators in the 88th Congress

This is a complete list of members of the United States Senate during the 88th United States Congress listed by seniority, from January 3, 1963, to January 3, 1965.

Order of service is based on the commencement of the senator's first term. Behind this is former service as a senator (only giving the senator seniority within his or her new incoming class), service as vice president, a House member, a cabinet secretary, or a governor of a state. The final factor is the population of the senator's state.^[1][2][3][4]

In this congress, J. William Fulbright (D-Arkansas) was the most senior junior senator and Hiram Fong (R-Hawaii) was the most junior senior senator.

Senators who were sworn in during the middle of the two-year congressional term (up until the last senator who was not sworn in early after winning the November 1964 election) are listed at the end of the list with no number.

Terms of service

This article is about the terms of service of senators that expired in years. For a list of special elections to the United States Senate, see List of special elections to the United States Senate.

Class	Terms of service of senators that expired in years
Class 1	Terms of service of senators that expired in 1965 (AZ, CA, CT, DE, FL, HI, IN, MA, MD, ME, MI, MN, MO, MS, MT, ND, NE, NJ, NM, NV, NY, OH, PA, RI, TN, TX, UT, VA, VT, WA, WI, WV, and WY.)[5]
Class 2	Terms of service of senators that expired in 1967 (AK, AL, AR, CO, DE, GA, IA, ID, IL, KS, KY, LA, MA, ME, MI, MN, MS, MT, NC, NE, NH, NJ, NM, OK, OR, RI, SC, SD, TN, TX, VA, WV, and WY.)[6]
Class 3	Terms of service of senators that expired in 1969 (AL, AK, AR, AZ, CA, CO, CT, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MD, MO, NC, NH, NV, NY, ND, OH, OK, OR, PA, SC, SD, UT, VT, WA, and WI.)[7]

U.S. Senate seniority list

U.S. Senate seniority

Rank	Senator (party-state)	Seniority date	Other factors
1	Carl Hayden (D-AZ)	March 4, 1927
2	Richard Russell, Jr. (D-GA)	January 12, 1933
3	Harry F. Byrd, Sr. (D-VA)	March 4, 1933
4	Allen J. Ellender (D-LA)	January 3, 1937
5	Joseph L. Hill (D-AL)	January 11, 1938
6	George Aiken (R-VT)	January 10, 1941
7	James Eastland (D-MS)	January 3, 1943	Previously a senator
8	John Little McClellan (D-AR)
9	Warren G. Magnuson (D-WA)	December 14, 1944
10	J. William Fulbright (D-AR)	January 3, 1945	Former representative
11	Bourke B. Hickenlooper (R-IA)		Former governor, Iowa 20th in population (1940)
12	Olin D. Johnston (D-SC)		Former governor, South Carolina 26th in population (1940)
13	Wayne Morse (D-OR)
14	Leverett Saltonstall (R-MA)	January 4, 1945
15	Milton Young (R-ND)	March 12, 1945
16	Spessard Holland (D-FL)	September 24, 1946
17	A. Willis Robertson (D-VA)	November 6, 1946	Former representative (13 years, 10 months)
18	John Sparkman (D-AL)		Former representative (9 years, 10 months)
19	John J. Williams (R-DE)	January 3, 1947
20	John C. Stennis (D-MS)	November 17, 1947
21	Karl Mundt (R-SD)	December 31, 1948	Former representative
22	Russell B. Long (D-LA)
23	Estes Kefauver[8] (D-TN)	January 3, 1949	Former representative (10 years)
24	Margaret Chase Smith (R-ME)		Former representative (8 years, 7 months)
25	Clinton Anderson (D-NM)		Former representative (4 years, 5 months)
26	Paul Douglas (D-IL)		Illinois 3rd in population (1940)
27	Hubert Humphrey[9] (D-MN)		Minnesota 18th in population (1940)
28	Frank Carlson (R-KS)	November 27, 1950
29	John O. Pastore (D-RI)	December 19, 1950
30	Everett Dirksen (R-IL)	January 3, 1951	Former representative (16 years)
31	Almer Monroney (D-OK)		Former representative (12 years)
32	George Smathers (D-FL)		Former representative (4 years)
33	Wallace F. Bennett (R-UT)
34	Thomas Kuchel (R-CA)	January 2, 1953
35	Albert Gore, Sr. (D-TN)	January 3, 1953	Former representative (14 years)
36	Henry M. Jackson (D-WA)		Former representative (12 years)
37	James Glenn Beall (R-MD)		Former representative (10 years), Maryland 28th in population (1950)
38	Mike Mansfield (D-MT)		Former representative (10 years), Montana 42nd in population (1950)
39	Stuart Symington (D-MO)		Missouri 12th in population (1950)
40	Barry Goldwater (R-AZ)		Arizona 37th in population (1950)
41	Sam Ervin (D-NC)	June 5, 1954
42	Norris Cotton (R-NH)	November 8, 1954	Former representative (7 years, 10 months)
43	Roman Hruska (R-NE)		Former representative (1 year, 10 months)
44	Alan Bible (D-NV)	December 2, 1954
45	Carl Curtis (R-NE)	January 1, 1955
46	Clifford P. Case (R-NJ)	January 3, 1955	Former representative
47	Patrick V. McNamara (D-MI)		Maryland 24th in population (1950)
48	Gordon L. Allott (R-CO)		Colorado 32nd in population (1950)
49	John Sherman Cooper (R-KY)	November 7, 1956	Previously a senator (twice) (total tenure 4 years, 4 months)
50	Strom Thurmond[10] (D-SC)		Previously a senator (1 year, 3 months)
51	Thruston Ballard Morton (R-KY)	January 3, 1957	Former representative
52	Frank J. Lausche (D-OH)		Former governor, Ohio 5th in population (1950)
53	Herman Talmadge (D-GA)		Former governor, Georgia 13th in population (1950)
54	Joseph S. Clark (D-PA)		Pennsylvania 3rd in population (1950)
55	Frank Church (D-ID)		Idaho 43rd in population (1950)
56	Jacob K. Javits (R-NY)	January 9, 1957
57	Ralph Yarborough (D-TX)	April 29, 1957
58	William Proxmire (D-WI)	August 28, 1957
59	Ben Jordan (D-NC)	April 19, 1958
60	Jennings Randolph (D-WV)	November 5, 1958
61	Hugh Scott (R-PA)	January 3, 1959	Former representative (18 years)
62	Clair Engle (D-CA)		Former representative (15 years, 4 months)
63	Kenneth Keating (R-NY)		Former representative (12 years)
64	Eugene McCarthy (D-MN)		Former representative (10 years)
65	Stephen Young (D-OH)		Former representative (8 years), Ohio 5th in population (1950)
66	Winston L. Prouty (R-VT)		Former representative (8 years), Vermont 46th in population (1950)
67	Robert Byrd (D-WV)		Former representative (6 years)
68	Harrison A. Williams (D-NJ)		Former representative (4 years), New Jersey 8th in population (1950)
69	Thomas J. Dodd (D-CT)		Former representative (4 years), Connecticut 34th in population (1950)
70	Edward L. Bartlett (D-AK)		Former delegate
71	Edmund Muskie (D-ME)		Former governor, Maine 35th in population (1950)
72	Ernest Gruening (D-AK)		Former Territorial Governor, Alaska 50th in population (1950)
73	Philip Hart (D-MI)		Michigan 7th in population (1950)
74	Vance Hartke (D-IN)		Indiana 11th in population (1950)
75	Frank Moss (D-UT)		Utah 38th in population (1950)
76	Gale W. McGee (D-WY)		Wyoming 48th in population (1950)
77	Howard Cannon (D-NV)		Nevada 49th in population (1950)
78	Hiram Fong (R-HI)	August 21, 1959
79	Quentin Northrup Burdick (D-ND)	August 8, 1960
80	Edward V. Long (D-MO)	September 23, 1960
81	Maurine Neuberger (D-OR)	November 9, 1960
82	Lee Metcalf (D-MT)	January 3, 1961	Former representative (8 years)
83	James Boggs (R-DE)		Former representative (6 years)
84	Jack Miller (R-IA)		Iowa 22nd in population (1950)
85	Claiborne Pell (D-RI)		Rhode Island 36th in population (1950)
86	John Tower (R-TX)	June 15, 1961
87	James B. Pearson (R-KS)	January 31, 1962
88	Leonard B. Jordan (R-ID)	August 6, 1962
89	Milward L. Simpson (R-WY)	November 7, 1962	Former governor
90	Ted Kennedy (D-MA)		Massachusetts 9th in population (1960)
91	Thomas J. McIntyre (D-NH)		New Hampshire 45th in population (1960)
92	Edwin L. Mechem (R-NM)	November 30, 1962
93	Abraham A. Ribicoff (D-CT)	January 3, 1963	Former representative (4 years), former cabinet secretary
94	Daniel Brewster (D-MD)		Former representative (4 years) - Maryland 21st in population (1960)
95	George McGovern (D-SD)		Former representative (4 years) - South Dakota 40th in population (1960)
96	Daniel Inouye (D-HI)		Former representative (4 years) - Hawaii 43rd in population (1960)
97	Peter H. Dominick (R-CO)		Former representative (2 years)
98	Birch Bayh (D-IN)
99	J. Howard Edmondson (D-OK)	January 7, 1963
100	Gaylord Nelson (D-WI)	January 8, 1963
	Herbert S. Walters (D-TN)	August 20, 1963
	Pierre Salinger (D-CA)	August 4, 1964
	Ross Bass (D-TN)	November 4, 1964	Former representative (9 years, 10 months)
	Joseph Montoya (D-NM)		Former representative (7 years)
	Fred R. Harris (D-OK)
	Walter Mondale (D-MN)	December 30, 1964
	George Murphy (R-CA)	January 1, 1965

The most senior senators by class were Harry F. Byrd Sr. (D-Virginia) from Class 1, Richard Russell Jr. (D-Georgia) from Class 2, and Carl Hayden (D-Arizona) from Class 3.

See also

• 88th United States Congress
• List of members of the United States House of Representatives in the 88th Congress by seniority