This is a complete list of members of the United States Senate during the 75th United States Congress listed by seniority, from January 3, 1937, to January 3, 1939.
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]
Senators who were sworn in during the middle of the Congress (up until the last senator who was not sworn in early after winning the November 1938 election) are listed at the end of the list with no number.
| Class | Terms of service of senators that will expire in years |
|---|---|
| Class 3 | Terms of service of senators that will expire in 1939 [4] |
| Class 1 | Terms of service of senators that will expire in 1941 [5] |
| Class 2 | Terms of service of senators that will expire in 1943 [6] |
| Rank | Senator (party-state) | Seniority date | Other factors |
|---|---|---|---|
| 1 | William Borah (R-ID) | March 4, 1907 | |
| 2 | Ellison D. Smith (D-SC) | March 4, 1909 | |
| 3 | Henry F. Ashurst (D-AZ) | April 2, 1912 [7] | |
| 4 | Key Pittman (D-NV) | January 29, 1913 | |
| 5 | Morris Sheppard (D-TX) | February 3, 1913 | |
| 6 | Joseph Robinson (D-AR) [8] | March 4, 1913 | Former representative (10 years), former governor |
| 7 | George W. Norris (I-NE) | Former representative (10 years) | |
| 8 | Kenneth McKellar (D-TN) | March 4, 1917 | Former representative (6 years) |
| 9 | William H. King (D-UT) | Former representative (3 years) | |
| 10 | Frederick Hale (R-ME) | ||
| 11 | Hiram Johnson (R-CA) | March 16, 1917 | |
| 12 | Charles L. McNary (R-OR) | December 18, 1918 | |
| 13 | Arthur Capper (R-KS) | March 4, 1919 | Former governor |
| 13 | Pat Harrison (D-MS) | March 5, 1919 | Former representative |
| 15 | Carter Glass (D-VA) | February 2, 1920 | |
| 16 | Walter F. George (D-GA) | November 22, 1922 | |
| 17 | Lynn Frazier (R-ND) | March 4, 1923 | Former governor |
| 18 | Royal S. Copeland (D-NY) [9] | New York 1st in population (1920) | |
| 19 | Henrik Shipstead (FL-MN) | Minnesota 17th in population (1920) | |
| 20 | Burton K. Wheeler (D-MT) | Montana 39th in population (1920) | |
| 21 | Robert M. La Follette, Jr. (WP-WI) | September 30, 1925 | |
| 22 | Gerald Nye (R-ND) | November 14, 1925 | |
| 23 | David I. Walsh (D-MA) | December 6, 1926 | |
| 24 | Carl Hayden (D-AZ) | March 4, 1927 | Former representative (15 years) |
| 25 | Alben W. Barkley (D-KY) | Former representative (14 years) | |
| 26 | Elmer Thomas (D-OK) | Former representative (4 years), Oklahoma 21st in population (1920) | |
| 27 | Millard Tydings (D-MD) | Former representative (4 years), Maryland 28th in population (1920) | |
| 28 | Robert F. Wagner (D-NY) | New York 1st in population (1920) | |
| 29 | Hugo Black (D-AL) [10] | Alabama 18th in population (1920) | |
| 30 | Frederick Steiwer (R-OR) [11] | Oregon 34th in population (1920) | |
| 31 | Arthur H. Vandenberg (R-MI) | March 31, 1928 | |
| 32 | Tom Connally (D-TX) | March 4, 1929 | Former representative |
| 33 | John G. Townsend, Jr. (R-DE) | ||
| 34 | Robert J. Bulkley (D-OH) [12] | December 1, 1930 | Former representative |
| 35 | George McGill (D-KS) [12] | ||
| 36 | James J. Davis (R-PA) | December 2, 1930 | |
| 37 | Matthew M. Neely (D-WV) | March 4, 1931 | Previously a senator, former representative (8 years) |
| 38 | J. Hamilton Lewis (D-IL) | Previously a senator, former representative (2 years) | |
| 39 | James F. Byrnes (D-SC) | Former representative, South Carolina 26th in population (1930) | |
| 40 | Wallace H. White, Jr. (R-ME) | Former representative, Maine 35th in population (1930) | |
| 41 | William J. Bulow (D-SD) | Former governor | |
| 42 | Josiah W. Bailey (D-NC) | North Carolina 12th in population (1930) | |
| 43 | John H. Bankhead II (D-AL) | Alabama 15th in population (1930) | |
| 44 | Marvel M. Logan (D-KY) | Kentucky 17th in population (1930) | |
| 45 | Warren Austin (R-VT) | April 1, 1931 | |
| 46 | Hattie Caraway (D-AR) | November 13, 1931 | |
| 47 | Robert R. Reynolds (D-NC) | December 5, 1932 | |
| 48 | Richard Russell, Jr. (D-GA) | January 12, 1933 | |
| 49 | Bennett Champ Clark (D-MO) | February 4, 1933 | |
| 50 | Alva B. Adams (D-CO) | March 4, 1933 | Previously a senator |
| 51 | Augustine Lonergan (D-CT) [12] | Former representative (8 years) | |
| 52 | William H. Dieterich (D-IL) [12] | Former representative (2 years), Illinois 3rd in population (1930) | |
| 53 | John H. Overton (D-LA) | Former representative (2 years), Louisiana 22nd in population (1930) | |
| 54 | Harry F. Byrd, Sr. (D-VA) | Former governor, Virginia 20th in population (1930) | |
| 55 | Fred H. Brown (D-NH) [12] | Former governor, New Hampshire 41st in population (1930) | |
| 56 | William Gibbs McAdoo (D-CA) [12] | California 6th in population (1930) | |
| 57 | Frederick Van Nuys (D-IN) | Indiana 11th in population (1930) | |
| 58 | F. Ryan Duffy (D-WI) [12] | Wisconsin 13th in population (1930) | |
| 59 | Nathan L. Bachman (D-TN) [13] | Tennessee 16th in population (1930) | |
| 60 | Homer T. Bone (D-WA) | Washington 30th in population (1930) | |
| 61 | Elbert D. Thomas (D-UT) | Utah 40th in population (1930) | |
| 62 | James Pope (D-ID) [12] | Idaho 42nd in population (1930) | |
| 63 | Pat McCarran (D-NV) | Nevada 48th in population (1930) | |
| 64 | Carl Hatch (D-NM) | October 10, 1933 | |
| 65 | Ernest W. Gibson (R-VT) | November 21, 1933 | |
| 66 | Joseph C. O'Mahoney (D-WY) | January 1, 1934 | |
| 67 | James Murray (D-MT) | November 7, 1934 | |
| 68 | Peter G. Gerry (D-RI) | January 3, 1935 | Previously a senator |
| 69 | Francis T. Maloney (D-CT) | Former representative, Connecticut 29th in population (1930) | |
| 70 | Edward R. Burke (D-NE) | Former representative, Nebraska 32nd in population (1930) | |
| 71 | Vic Donahey (D-OH) | Former governor, Ohio 4th in population (1930) | |
| 72 | A. Harry Moore (D-NJ) [14] | Former governor, New Jersey 9th in population (1930) | |
| 73 | Theodore G. Bilbo (D-MS) | Former governor, Mississippi 23rd in population (1930) | |
| 74 | Joseph F. Guffey (D-PA) | Pennsylvania 2nd in population (1930) | |
| 75 | Harry S. Truman (D-MO) | Missouri 10th in population (1930) | |
| 76 | Sherman Minton (D-IN) | Indiana 11th in population (1930) | |
| 77 | George L. P. Radcliffe (D-MD) | Maryland 28th in population (1930) | |
| 78 | Lewis B. Schwellenbach (D-WA) | Washington 30th in population (1930) | |
| 79 | Dennis Chavez (D-NM) | May 11, 1935 | |
| 80 | Rush D. Holt (D-WV) | June 21, 1935 | |
| 81 | Guy Mark Gillette (D-IA) | November 4, 1936 | Former representative |
| 82 | Charles O. Andrews (D-FL) | ||
| 83 | Claude Pepper (D-FL) | ||
| 84 | Prentiss M. Brown (D-MI) | November 19, 1936 | |
| 85 | Herbert E. Hitchcock (D-SD) [15] | December 29, 1936 | |
| 86 | Ernest Lundeen (FL-MN) | January 3, 1937 | Former representative (6 years) |
| 87 | Joshua B. Lee (D-OK) | Former representative (2 years) | |
| 88 | Clyde L. Herring (D-IA) | Former governor, Iowa 19th in population (1930) | |
| 89 | Edwin C. Johnson (D-CO) | Former governor, Colorado 33rd in population (1930) | |
| 90 | Theodore F. Green (D-RI) | Former governor, Rhode Island 37th in population (1930) | |
| 91 | Styles Bridges (R-NH) | Former governor, New Hampshire 41st in population (1930) | |
| 92 | Henry Cabot Lodge, Jr. (R-MA) | Massachusetts 8th in population (1930) | |
| 93 | Allen J. Ellender (D-LA) | Louisiana 22nd in population (1930) | |
| 94 | James H. Hughes (D-DE) | Delaware 46th in population (1930) | |
| 95 | Henry H. Schwartz (D-WY) | Wyoming 47th in population (1930) | |
| 96 | William H. Smathers (D-NJ) | April 15, 1937 | |
| George L. Berry (D-TN) [12] | May 6, 1937 | ||
| Dixie Bibb Graves (D-AL) [16] | August 20, 1937 | ||
| John E. Miller (D-AR) | November 15, 1937 | ||
| Joseph L. Hill (D-AL) | January 11, 1938 | ||
| John Milton (D-NJ) [17] | January 18, 1938 | ||
| Alfred E. Reames (D-OR) [18] | February 1, 1938 | ||
| William Warren Barbour (R-NJ) | November 9, 1938 | Previously a senator | |
| Thomas M. Storke (D-CA) [12] | California 6th in population (1930) | ||
| Tom Stewart (D-TN) | Tennessee 16th in population (1930) | ||
| Alexander G. Barry (R-OR) [12] | Oregon 34th in population (1930) | ||
| Gladys Pyle (R-SD) [12] | South Dakota 36th in population (1930) | ||
| James M. Mead (D-NY) | December 3, 1938 | ||