This is a complete list of United States senators during the 89th United States Congress listed by seniority from January 3, 1965, to January 3, 1967.

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 their 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.A Chronological List of United States Senators 1789-Present, via www.Senate.gov1941 U.S Census Report Contains 1940 census results1951 U.S Census Report Contains 1950 census results1961 U.S Census Report Contains 1960 census results.

In this congress, J. William Fulbright (D-Arkansas) was the most senior junior senator and Daniel Brewster (D-Maryland) was the most junior senior senator for most of the congress until A. Willis Robertson retired from the senate when Harry F. Byrd Jr. (D-Virginia) took this distinction in the final days of the congress.

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 1966 election) are listed at the end of the list with no number.

Terms of service

ClassTerms of service of senators that expired in yearsClass 2Terms 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.)Terms of service of senators that expired in 1967.Class 3Terms of service of senators that expired in 1969 (AK, AL, AR, AZ, CA, CO, CT, DE, FL, GA, HI, IA, ID, IL, IN, KS, KY, LA, MA, ME, MI, MN, MS, NC, ND, NH, NM, NV, NY, OK, OR, SC, SD, TN, TX, VA, WA, WV, and WY.)Terms of service of senators that expired in 1969.Class 1Terms of service of senators that expired in 1971 (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.)Terms of service of senators that expired in 1971.

U.S. Senate seniority list +U.S. Senate seniority Rank Historical rank Senator (party-state) Seniority date Other factors 1 1248 Carl Hayden (D-AZ) March 4, 1927 2 1306 Richard Russell, Jr. (D-GA) January 12, 1933 3 1311 Harry F. Byrd, Sr.Senator Harry F. Byrd Sr. stepped down for health reasons on October 20, 1965. (D-VA) March 4, 1933 4 1352 Allen J. Ellender (D-LA) January 3, 1937 5 1365 Joseph L. Hill (D-AL) January 11, 1938 6 1399 George Aiken (R-VT) January 10, 1941 7 1403Eastland previously served as a U.S. senator from June to September 1941. James Eastland (D-MS) January 3, 1943 Previously a senator 8 1417 John Little McClellan (D-AR) 9 1430 Warren G. Magnuson (D-WA) December 14, 1944 10 1432 J. William Fulbright (D-AR) January 3, 1945 Former representative 11 1433 Bourke B. Hickenlooper (R-IA) Former governor, Iowa 20th in population (1940) 12 1435 Olin D. JohnstonSenator Johnston died on April 18, 1965. (D-SC) Former governor, South Carolina 26th in population (1940) 13 1437 Wayne Morse (D-OR) 14 1441 Leverett Saltonstall (R-MA) January 4, 1945 15 1446 Milton Young (R-ND) March 12, 1945 16 1454 Spessard Holland (D-FL) September 24, 1946 17 1458 A. Willis Robertson (D-VA) November 6, 1946 Former representative (13 years, 10 months) 18 1459 John Sparkman (D-AL) Former representative (9 years, 10 months) 19 1475 John J. Williams (R-DE) January 3, 1947 20 1476 John C. Stennis (D-MS) November 17, 1947 21 1480 Karl Mundt (R-SD) December 31, 1948 Former representative 22 1481 Russell B. Long (D-LA) 23 1485 Margaret Chase Smith (R-ME) January 3, 1949 Former representative (8 years, 7 months) 24 1486 Clinton Anderson (D-NM) Former representative (4 years, 5 months) 25 1490 Paul Douglas (D-IL) 26 1504 Frank Carlson (R-KS) November 27, 1950 27 1506 John O. Pastore (D-RI) December 19, 1950 28 1507 Everett Dirksen (R-IL) January 3, 1951 Former representative (16 years) 29 1509 Almer Monroney (D-OK) Former representative (12 years) 30 1511 George Smathers (D-FL) Former representative (4 years) 31 1513 Wallace F. Bennett (R-UT) 32 1523 Thomas Kuchel (R-CA) January 2, 1953 33 1524 Albert Gore, Sr. (D-TN) January 3, 1953 Former representative (14 years) 34 1525 Henry M. Jackson (D-WA) Former representative (12 years) 35 1528 Mike Mansfield (D-MT) Former representative (10 years) 36 1533 Stuart Symington (D-MO) 37 1538 Sam Ervin (D-NC) June 5, 1954 38 1544 Norris Cotton (R-NH) November 8, 1954 Former representative (7 years, 10 months) 39 1545 Roman Hruska (R-NE) Former representative (1 year, 10 months) 40 1547 Alan Bible (D-NV) December 2, 1954 41 1550 Carl Curtis (R-NE) January 1, 1955 42 1551 Clifford P. Case (R-NJ) January 3, 1955 Former representative 43 1553 Patrick V. McNamaraSenator McNamara died on April 30, 1966. (D-MI) Maryland 24th in population (1950) 44 1555 Gordon L. Allott (R-CO) Colorado 32nd in population (1950) 45 1456Cooper previously served as a U.S. senator twice, from November 1946 to January 1949 and again from November 1952 to January 1955. John Sherman Cooper (R-KY) November 7, 1956 Previously a senator (twice) (total tenure 4 years, 4 months) 46 1549Thurmond previously served as a U.S. senator from December 1954 to April 1956. Strom Thurmond (R-SC) Previously a senator (1 year, 3 months) 47 1559 Thruston Ballard Morton (R-KY) January 3, 1957 Former representative 48 1561 Frank J. Lausche (D-OH) Former governor, Ohio 5th in population (1950) 49 1562 Herman Talmadge (D-GA) Former governor, Georgia 13th in population (1950) 50 1563 Joseph S. Clark (D-PA) Pennsylvania 3rd in population (1950) 51 1564 Frank Church (D-ID) Idaho 43rd in population (1950) 52 1565 Jacob K. Javits (R-NY) January 9, 1957 53 1567 Ralph Yarborough (D-TX) April 29, 1957 54 1568 William Proxmire (D-WI) August 28, 1957 55 1570 Ben Jordan (D-NC) April 19, 1958 56 1571 Jennings Randolph (D-WV) November 5, 1958 57 1572 Hugh Scott (R-PA) January 3, 1959 Former representative (18 years) 58 1575 Eugene McCarthy (D-MN) Former representative (10 years) 59 1576 Stephen Young (D-OH) Former representative (8 years), Ohio 5th in population (1950) 60 1577 Winston L. Prouty (R-VT) Former representative (8 years), Vermont 46th in population (1950) 61 1578 Robert Byrd (D-WV) Former representative (6 years) 62 1579 Harrison A. Williams (D-NJ) Former representative (4 years), New Jersey 8th in population (1950) 63 1580 Thomas J. Dodd (D-CT) Former representative (4 years), Connecticut 34th in population (1950) 64 1581 Edward L. Bartlett (D-AK) Former delegate 65 1582 Edmund Muskie (D-ME) Former governor, Maine 35th in population (1950) 66 1583 Ernest Gruening (D-AK) Former Territorial Governor, Alaska 50th in population (1950) 67 1584 Philip Hart (D-MI) Michigan 7th in population (1950) 68 1585 Vance Hartke (D-IN) Indiana 11th in population (1950) 69 1586 Frank Moss (D-UT) Utah 38th in population (1950) 70 1587 Gale W. McGee (D-WY) Wyoming 48th in population (1950) 71 1588 Howard Cannon (D-NV) Nevada 49th in population (1950) 72 1590 Hiram Fong (R-HI) August 21, 1959 73 1593 Quentin Northrup Burdick (D-ND) August 8, 1960 74 1594 Edward V. Long (D-MO) September 23, 1960 75 1595 Maurine Neuberger (D-OR) November 9, 1960 76 1597 Lee Metcalf (D-MT) January 3, 1961 Former representative (8 years) 77 1598 James Boggs (R-DE) Former representative (6 years) 78 1600 Jack Miller (R-IA) Iowa 22nd in population (1950) 79 1601 Claiborne Pell (D-RI) Rhode Island 36th in population (1950) 80 1602 John Tower (R-TX) June 15, 1961 81 1604 James B. Pearson (R-KS) January 31, 1962 82 1606 Len Jordan (R-ID) August 6, 1962 83 1607 Milward L. Simpson (R-WY) November 7, 1962 Former governor 84 1608 Ted Kennedy (D-MA) Massachusetts 9th in population (1960) 85 1609 Thomas J. McIntyre (D-NH) New Hampshire 45th in population (1960) 86 1611 Abraham A. Ribicoff (D-CT) January 3, 1963 Former representative (4 years), former cabinet secretary 87 1612 Daniel Brewster (D-MD) Former representative (4 years) - Maryland 21st in population (1960) 88 1613 George McGovern (D-SD) Former representative (4 years) - South Dakota 40th in population (1960) 89 1614 Daniel Inouye (D-HI) Former representative (4 years) - Hawaii 43rd in population (1960) 90 1615 Peter H. Dominick (R-CO) Former representative (2 years) 91 1616 Birch Bayh (D-IN) 92 1618 Gaylord Nelson (D-WI) January 7, 1963 93 1621 Ross Bass (D-TN) November 4, 1964 Former representative (9 years, 10 months) 94 1622 Joseph Montoya (D-NM) Former representative (7 years) 95 1623 Fred R. Harris (D-OK) 96 1624 Walter Mondale (D-MN) December 30, 1964 97 1625 George Murphy (R-CA) January 1, 1965 98 1626 Joseph Tydings (D-MD) January 3, 1965 Former representative 99 1627 Robert F. Kennedy (D-NY) Former cabinet member 100 1628 Paul Fannin (R-AZ) 1629 Donald S. Russell (D-SC) April 22, 1965 1630 Harry F. Byrd, Jr. (D-VA) November 12, 1965 1631 Robert P. Griffin (R-MI) May 11, 1966 1632 Ernest Hollings (D-SC) November 9, 1966 1633 William B. Spong, Jr. (D-VA) December 31, 1966

The 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. Byrd Sr. resigned on November 10, 1965 with Spessard Holland (D-Florida) became the most senior senator from his class.

See also 89th United States Congress List of United States representatives in the 89th Congress

Notes

External links Senate Seniority List