|- ! | Wall Doxey | | Democratic | 1928 | Incumbent re-elected. | nowrap | |- ! | William Madison Whittington | | Democratic | 1924 | Incumbent re-elected. | nowrap | |- ! | Aaron L. Ford | | Democratic | 1934 | Incumbent re-elected. | nowrap | |- ! | Ross A. Collins | | Democratic | 1936 | Incumbent re-elected. | nowrap | |- ! | William M. Colmer | | Democratic | 1932 | Incumbent re-elected. | nowrap | |- ! | Dan R. McGehee | | Democratic | 1934 | Incumbent re-elected. | nowrap | |} Missouri |- ! | Milton A. Romjue | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | William L. Nelson | | Democratic | 1934 | Incumbent re-elected. | nowrap | |- ! | Richard M. Duncan | | Democratic | 1932 | Incumbent re-elected. | nowrap | |- ! | C. Jasper Bell | | Democratic | 1934 | Incumbent re-elected. | nowrap | |- ! | Joe Shannon | | Democratic | 1930 | Incumbent re-elected. | nowrap | |- ! | Reuben T. Wood | | Democratic | 1932 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | Dewey Jackson Short | | Republican | 1934 | Incumbent re-elected. | nowrap | |- ! | Clyde Williams | | Democratic | 1930 | Incumbent re-elected. | nowrap | |- ! | Clarence Cannon | | Democratic | 1922 | Incumbent re-elected. | nowrap | |- ! | Orville Zimmerman | | Democratic | 1934 | Incumbent re-elected. | nowrap | |- ! | Thomas C. Hennings Jr. | | Democratic | 1934 | | ?Democratic hold. | nowrap | |- ! | Charles Arthur Anderson | | Democratic | 1936 | | Incumbent lost re-election.New member elected.Republican gain. | nowrap | |- ! | John J. Cochran | | Democratic | 1926 | Incumbent re-elected. | nowrap | |} Montana |- ! | Jacob Thorkelson | | Republican | 1938 | | Incumbent lost renomination.New member elected.Republican hold. | nowrap | |- ! | James F. O'Connor | | Democratic | 1936 | Incumbent re-elected. | nowrap | |} Nebraska |- ! | John Hyde Sweet | | Republican | 1940 | | Incumbent retired.New member elected.Republican hold. | nowrap | |- ! | Charles F.