In addition, the Senate was called into special session by President Warren G. Harding and met from March 4 , 1921 to March 15 , 1921 .
- Of all the Congresses, the 67th was the only one to have held four sessions.
- Henry F. Ashurst , Democrat, Arizona
- Lewis H. Ball , Republican, Delaware
- Thomas F. Bayard, Jr. , Democrat, Delaware. Bayard took Josiah O. Wolcott's vacant seat after defeating appointee Thomas C. du Pont.
- William E. Borah , Republican, Idaho
- Frank B. Brandegee , Republican, Connecticut
- Smith W. Brookhart , Republican, Iowa. Brookhart was elected to the Senate after William S. Kenyon resigned.
- Edwin S. Broussard , Democrat, Louisiana
- Holm O. Bursum , Republican, New Mexico. Bursum was appointed and elected to take the place of Albert B. Fall after Fall resigned.
- William M. Calder , Republican, New York
- Ralph H. Cameron , Republican, Arizona
- Arthur Capper , Republican, Kansas
- Thaddeus H. Caraway , Democrat, Arkansas
- LeBaron B. Colt , Republican, Rhode Island
- James Couzens , Republican, Michigan. Couzens was appointed and then elected to take the place of Truman H. Newberry.
- William E. Crow , Republican, Pennsylvania. Crow died 2 August 1922; he was replaced by David A. Reed.
- Charles A. Culberson , Democrat, Texas
- Albert B. Cummins , Republican, Iowa
- Charles Curtis , Republican, Kansas
- Nathaniel B. Dial , Democrat, South Carolina
- William P. Dillingham , Republican, Vermont
- Thomas C. Du Pont , Republican, Delaware. Du Pont was appointed to replace Josiah O. Wolcott after Wolcott's resignation; he also ran in the election for this seat, but lost.
- Walter E. Edge , Republican, New Jersey
- Davis Elkins , Republican, West Virginia
- Richard P. Ernst , Republican, Kentucky
- Albert B. Fall , Republican, New Mexico. Fall resigned 4 March 1921 to become Secretary of the Interior; his empty seat was filled by Holm O. Bursum.
- Rebecca L. Felton , Democrat, Georgia. Felton was appointed to take the seat of Thomas E. Watson after Watson's death; she served only twenty-four hours, from 21 November to 22 November 1922.
- Bert M. Fernald , Republican, Maine
- Duncan U. Fletcher , Democrat, Florida
- Joseph I. France , Republican, Maryland
- Joseph S. Frelinghuysen , Republican, New Jersey
- Walter F. George , Democrat, Georgia. George filled the vacancy caused by the death of Thomas E. Watson.
- Peter G. Gerry , Democrat, Rhode Island
- Carter Glass , Democrat, Virginia
- Frank R. Gooding , Republican, Idaho
- Frederick Hale , Republican, Maine
- John W. Harreld , Republican, Oklahoma
- William J. Harris , Democrat, Georgia
- Byron P. Harrison , Democrat, Mississippi
- James T. Heflin , Democrat, Alabama
- Gilbert M. Hitchcock , Democrat, Nebraska
- Hiram W. Johnson , Republican, California
- Andrieus A. Jones , Democrat, New Mexico
- Wesley L. Jones , Republican, Washington
- Frank B. Kellogg , Republican, Minnesota
- John B. Kendrick , Democrat, Wyoming
- William S. Kenyon , Republican, Iowa. Kenyon resigned 24 February 1922. He was replaced at first by Charles A. Rawson and then by Smith W. Brookhart.
- Henry W. Keyes , Republican, New Hampshire
- William H. King , Democrat, Utah
- Robert M. La Follette , Republican, Wisconsin
- Edwin F. Ladd , Republican, North Dakota
- Irvine L. Lenroot , Republican, Wisconsin
- Henry Cabot Lodge , Republican, Massachusetts
- Joseph M. McCormick , Republican, Illinois
- Porter J. McCumber , Republican, North Dakota
- Kenneth D. McKellar , Democrat, Tennessee
- William B. McKinley , Republican, Illinois
- George P. McLean , Republican, Connecticut
- Charles L. McNary , Republican, Oregon
- George H. Moses , Republican, New Hampshire
- Henry L. Myers , Democrat, Montana
- Knute Nelson , Republican, Minnesota
- Harry S. New , Republican, Indiana
- Truman H. Newberry , Republican, Michigan. Newberry resigned amid accusations of fraud. His vacant seat was filled by James Couzens.
- Samuel D. Nicholson , Republican, Colorado
- Peter Norbeck , Republican, South Dakota
- George W. Norris , Republican, Nebraska
- Tasker L. Oddie , Republican, Nevada
- Lee S. Overman , Democrat, North Carolina
- Robert L. Owen , Democrat, Oklahoma
- Carroll S. Page , Republican, Vermont
- Boies Penrose , Republican, Pennsylvania. Penrose died 31 December 1921; George W. Pepper filled the vacancy.
- George W. Pepper , Republican, Pennsylvania. Pepper was appointed and elected to take Boies Penrose's seat after Penrose's death.
- Lawrence C. Phipps , Republican, Colorado
- Key Pittman , Democrat, Nevada
- Miles Poindexter , Republican, Washington
- Atlee Pomerene , Democrat, Ohio
- Joseph E. Ransdell , Democrat, Louisiana
- Charles A. Rawson , Republican, Iowa. Rawson was appointed to fill the vacancy caused by William S. Kenyon's resignation.
- David A. Reed , Republican, Pennsylvania. Reed was appointed and elected to the Senate after William E. Crow's death.
- James A. Reed , Democrat, Missouri
- Joseph T. Robinson , Democrat, Arkansas
- Morris Sheppard , Democrat, Texas
- John K. Shields , Democrat, Tennessee
- Samuel M. Shortridge , Republican, California
- Furnifold M. Simmons , Democrat, North Carolina
- Ellison D. Smith , Democrat, South Carolina
- Reed Smoot , Republican, Utah
- Selden P. Spencer , Republican, Missouri
- Robert N. Stanfield , Republican, Oregon
- Augustus O. Stanley , Democrat, Kentucky
- Thomas Sterling , Republican, South Dakota
- Howard Sutherland , Republican, West Virginia
- Claude A. Swanson , Democrat, Virginia
- Charles E. Townsend , Republican, Michigan
- Park Trammell , Democrat, Florida
- Oscar W. Underwood , Democrat, Alabama
- James W. Wadsworth, Jr. , Republican, New York
- David I. Walsh , Democrat, Massachusetts
- Thomas J. Walsh , Democrat, Montana
- Francis E. Warren , Republican, Wyoming
- James E. Watson , Republican, Indiana
- Thomas E. Watson , Democrat, Georgia. Watson died 26 September 1922; his vacant seat was filled at first by the appointed Rebecca L. Felton and then by the elected Walter F. George.
- Ovington E. Weller , Republican, Maryland
- John S. Williams , Democrat, Mississippi
- Frank B. Willis , Republican, Ohio
- Josiah O. Wolcott , Democrat, Delaware. Wolcott resigned 2 July 1921 to accept a judicial position. He was replaced at first by the appointed Thomas C. du Pont and later by the elected Thomas F. Bayard, Jr.
- Edward B. Almon , Democrat
- William B. Bankhead , Democrat
- Fred L. Blackmon , Democrat
- William B. Bowling , Democrat
- George Huddleston , Democrat
- Lamar Jeffers , Democrat
- John McDuffie , Democrat
- William B. Oliver , Democrat
- Lilius B. Rainey , Democrat
- Henry B. Steagall , Democrat
- John R. Tyson , Democrat
- Henry E. Barbour , Republican
- Charles F. Curry , Republican
- John A. Elston , Progressive
- Arthur M. Free , Republican
- Julius Kahn , Republican
- Clarence F. Lea , Democrat
- Walter F. Lineberger , Republican
- James H. MacLafferty , Republican
- John I. Nolan , Republican
- Mae E. Nolan , Republican
- Henry Z. Osborne , Republican
- John E. Raker , Democrat
- Philip D. Swing , Republican
- Thomas M. Bell , Democrat
- Charles H. Brand , Democrat
- Charles R. Crisp , Democrat
- William C. Lankford , Democrat
- William W. Larsen , Democrat
- Gordon Lee , Democrat
- James W. Overstreet , Democrat
- Frank Park , Democrat
- William D. Upshaw , Democrat
- Carl Vinson , Democrat
- James W. Wise , Democrat
- William C. Wright , Democrat
- Frederick A. Britten , Republican
- Edwin B. Brooks , Republican
- Joseph G. Cannon , Republican
- Carl R. Chindblom , Republican
- Ira C. Copley , Progressive
- Edward E. Denison , Republican
- Charles Eugene Fuller , Republican
- Frank H. Funk , Republican
- John J. Gorman , Republican
- William J. Graham , Republican
- Winnifred S. M. Huck , Republican
- Clifford C. Ireland , Republican
- Edward J. King , Republican
- Stanley H. Kunz , Democrat
- Martin B. Madden , Republican
- James R. Mann , Republican
- William E. Mason , Republican
- John C. McKenzie , Republican
- Magne A. Michaelson , Republican
- Allen F. Moore , Republican
- John W. Rainey , Democrat
- William A. Rodenberg , Republican
- Adolph J. Sabath , Democrat
- Guy L. Shaw , Republican
- Elliott W. Sproul , Republican
- Loren E. Wheeler , Republican
- Thomas S. Williams , Republican
- Richard Yates , Republican
- John S. Benham , Republican
- Oscar E. Bland , Republican
- James W. Dunbar , Republican
- Richard N. Elliott , Republican
- Louis W. Fairfield , Republican
- Andrew J. Hickey , Republican
- Milton Kraus , Republican
- Oscar R. Luhring , Republican
- Merrill Moores , Republican
- Fred S. Purnell , Republican
- Everett Sanders , Republican
- Albert H. Vestal , Republican
- William R. Wood , Republican
- William D. Boies , Republican
- Cyrenus Cole , Republican
- Lester J. Dickinson , Republican
- Cassius C. Dowell , Republican
- James W. Good , Republican
- William R. Green , Republican
- Gilbert N. Haugen , Republican
- Harry E. Hull , Republican
- William F. Kopp , Republican
- Christian W. Ramseyer , Republican
- Burton E. Sweet , Republican
- Horace M. Towner , Republican
- Alben W. Barkley , Democrat
- James C. Cantrill , Democrat
- William J. Fields , Democrat
- Ralph W. E. Gilbert , Democrat
- Ben Johnson , Democrat
- David H. Kincheloe , Democrat
- John W. Langley , Republican
- Charles F. Ogden , Republican
- John M. Robsion , Republican
- Arthur B. Rouse , Democrat
- Robert Y. Thomas, Jr. , Democrat
- Abram P. Andrew, Jr. , Republican
- Frederick W. Dallinger , Republican
- Louis A. Frothingham , Republican
- James A. Gallivan , Democrat
- Charles L. Gifford , Republican
- Frederick H. Gillett , Republican
- William S. Greene , Republican
- Robert Luce , Republican
- Willfred W. Lufkin , Republican
- Robert S. Maloney , Republican
- Calvin D. Paige , Republican
- John J. Rogerts , Republican
- Peter F. Tague , Democrat
- George H. Tinkham , Republican
- Allen T. Treadway , Republican
- Charles L. Underhill , Republican
- Joseph Walsh , Republican
- Samuel E. Winslow , Republican
- Vincent M. Brennan , Republican
- George P. Codd , Republican
- Louis C. Cramton , Republican
- Joseph W. Fordney , Republican
- William H. Frankhauser , Republican
- William F. James , Republican
- Patrick H. Kelley , Republican
- John C. Ketcham , Republican
- Carl E. Mapes , Republican
- James C. McLaughlin , Republican
- Earl C. Michener , Republican
- Frank D. Scott , Republican
- John M. C. Smith , Republican
- Roy O. Woodruff , Republican
- Sydney Anderson , Republican
- Frank Clague , Republican
- Charles R. Davis , Republican
- Oscar E. Keller , Republican
- Harold Knutson , Republican
- Oscar J. Larson , Republican
- Walter H. Newton , Republican
- Thomas D. Schall , Republican
- Halvor Steenerson , Republican
- Andrew J. Volstead , Republican
- William O. Atkeson , Republican
- Leonidas C. Dyer , Republican
- Edgar C. Ellis , Republican
- Charles L. Faust , Republican
- Harry B. Hawes , Democrat
- Edward D. Hays , Republican
- Theodore W. Hukriede , Republican
- Henry F. Lawrence , Republican
- Isaac V. McPherson , Republican
- Frank C. Millspaugh , Republican
- Cleveland A. Newton , Republican
- Roscoe C. Patterson , Republican
- Marion E. Rhodes , Republican
- Sidney C. Roach , Republican
- William W. Rucker , Democrat
- Samuel A. Shelton , Republican
- Ernest R. Ackerman , Republican
- Theodore F. Appleby , Republican
- Isaac Bacharach , Republican
- Elijah C. Hutchinson , Republican
- Frederick R. Lehlbach , Republican
- Charles F. X. O'Brien , Democrat
- Archibald E. Olpp , Republican
- Richard W. Parker , Republican
- Francis F. Patterson, Jr. , Republican
- Randolph Perkins , Republican
- Amos H. Radcliffe , Republican
- Herbert W. Taylor , Republican
- Martin C. Ansorge , Republican
- Charles G. Bond , Republican
- John F. Carew , Democrat
- Walter M. Chandler , Republican
- John D. Clarke , Republican
- William B. Cockran , Democrat
- Frank Crowther , Republican
- Thomas H. Cullen , Democrat
- Stephen W. Dempsey , Republican
- Thomas B. Dunn , Republican
- Benjamin L. Fairchild , Republican
- Hamilton Fish , Republican
- Norman J. Gould , Republican
- Anthony J. Griffin , Democrat
- Lewis Henry , Republican
- Frederick C. Hicks , Republican
- Michael J. Hogan , Republican
- Alanson B. Houghton , Republican
- James W. Husted , Republican
- John J. Kindred , Democrat
- John Kissel , Republican
- Ardolph L. Kline , Republican
- Warren I. Lee , Republican
- Meyer London , Socialist
- Clarence MacGregor , Republican
- Walter W. Magee , Republican
- James M. Mead , Democrat
- Ogden L. Mills , Republican
- Luther W. Mott , Republican
- James S. Parker , Republican
- Nathan D. Perlman , Republican
- Andrew N. Petersen , Republican
- Daniel A. Reed , Republican
- Daniel J. Riordan , Democrat
- Albert B. Rossdale , Republican
- Thomas J. Ryan , Republican
- Archie D. Sanders , Republican
- Isaac Siegel , Republican
- Bertrand H. Snell , Republican
- Homer P. Snyder , Republican
- Christopher D. Sullivan , Democrat
- Peter G. Ten Eyck , Democrat
- Lester D. Volk , Republican
- Charles B. Ward , Republican
- Charles L. Abernethy , Democrat
- Samuel M. Brinson , Democrat
- Alfred L. Bulwinkle , Democrat
- Robert L. Doughton , Democrat
- William C. Hammer , Democrat
- Claude Kitchin , Democrat
- Homer L. G. Lyon , Democrat
- Edward W. Pou , Democrat
- Charles M. Stedman , Democrat
- Hallett S. Ward , Democrat
- Zebulon Weaver , Democrat
- James T. Begg , Republican
- Theodore E. Burton , Republican
- John L. Cable , Republican
- William W. Chalmers , Republican
- Raymond C. Cole , Republican
- John G. Cooper , Republican
- Simeon D. Fess , Republican
- Roy G. Fitzgerald , Republican
- Israel M. Foster , Republican
- Harry C. Gahn , Republican
- Joseph H. Himes , Republican
- Charles C. Kearns , Republican
- Charles L. Knight , Republican
- Nicholas Longworth , Republican
- Charles E. Moore , Republican
- William M. Morgan , Republican
- Benjamin F. Murphy , Republican
- Miner G. Norton , Republican
- Edwin D. Ricketts , Republican
- John C. Speaks , Republican
- Ambrose E. B. Stephens , Republican
- Charles J. Thompson , Republican
- Harris J. Bixler , Republican
- Edward S. Brooks , Republican
- William J. Burke , Republican
- Thomas S. Butler , Republican
- Guy E. Campbell , Democrat
- Charles R. Connell , Republican
- James J. Connolly , Republican
- Clarence D. Coughlin , Republican
- George P. Darrow , Republican
- George W. Edmonds , Republican
- Benjamin K. Focht , Republican
- Fred B. Gernerd , Republican
- George S. Graham , Republican
- William W. Griest , Republican
- Evan J. Jones , Republican
- Melville C. Kelly , Progressive
- Samuel A. Kendall , Republican
- Edgar R. Kiess , Republican
- William H. Kirkpatrick , Republican
- Isaac C. Kline , Republican
- Aaron S. Kreider , Republican
- Louis T. McFadden , Republican
- Joseph McLaughlin , Republican
- John M. Morin , Republican
- Stephen G. Porter , Republican
- Harry C. Ransley , Republican
- John Reber , Republican
- John M. Rose , Republican
- Milton W. Shreve , Republican
- Nathan L. Strong , Republican
- Henry W. Temple , Republican
- William S. Vare , Republican
- Anderson H. Walters , Republican
- Henry W. Watson , Republican
- Adam M. Wyant , Republican
- Joseph E. Brown , Republican
- Joseph W. Byrns , Democrat
- Wynne F. Clouse , Republican
- Ewin L. Davis , Democrat
- Hubert F. Fisher , Democrat
- Finis J. Garrett , Democrat
- Lemuel P. Padgett , Democrat
- Brazilla C. Reece , Republican
- Lon A. Scott , Republican
- James W. Taylor , Republican
- Clarence W. Turner , Democrat
- Eugene Black , Democrat
- Thomas L. Blanton , Democrat
- John C. Box , Democrat
- Clay S. Briggs , Democrat
- James P. Buchanan , Democrat
- Thomas T. Connally , Democrat
- John N. Garner , Democrat
- Daniel E. Garrett , Democrat
- Rufus Hardy , Democrat
- Claude B. Hudspeth , Democrat
- John M. Jones , Democrat
- Fritz G. Lanham , Democrat
- Joseph J. Mansfield , Democrat
- Lucian W. Parrish , Democrat
- Samuel T. Rayburn , Democrat
- Morgan G. Sanders , Democrat
- Hatton W. Sumners , Democrat
- Guinn Williams , Democrat
- Harry M. Wurzbach , Republican
- Schuyler O. Bland , Democrat
- Joseph T. Deal , Democrat
- Patrick H. Drewry , Democrat
- Thomas W. Harrison , Democrat
- James M. Hooker , Democrat
- Rorer A. James , Democrat
- Andrew J. Montague , Democrat
- Robert W. Moore , Democrat
- John Paul , Republican
- Campbell B. Slemp , Republican
- Henry St. George Tucker , Democrat
- James P. Woods , Democrat
- Joseph D. Beck , Republican
- Edward E. Browne , Republican
- David G. Classon , Republican
- Henry A. Cooper , Republican
- James A. Frear , Republican
- John C. Kleczka , Republican
- Florian Lampert , Republican
- Adolphus P. Nelson , Republican
- John M. Nelson , Republican
- William H. Stafford , Republican
- Edward Voigt , Republican
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