| rowspan=7 | 4
| 

|- style="height:2em"
| 

|- style="height:2em"
| 
| rowspan=7 | 5
| Elected January 19, 1909.Died. | nowrap | March 4, 1909 –October 21, 1909
|  | Republican
| align=right | Martin N. Johnson
! 3

|- style="height:2em"
|  
| nowrap | October 21, 1909 –November 10, 1909
| colspan=3 | Vacant

|- style="height:2em"
| Appointed to continue Johnson's term.Resigned. | nowrap | November 10, 1909 –January 31, 1910
|  | Democratic
| align=right | Fountain L. Thompson
! 4

|- style="height:2em"
| Appointed to continue Johnson's term.Lost election to finish Johnson's term. | nowrap | February 1, 1910 –February 1, 1911
|  | Democratic
| align=right | William E. Purcell
! 5

|- style="height:2em"
| rowspan=3 | Elected January 17, 1911 to finish Johnson's term, but didn't qualify until resigning from the U.S. House. | rowspan=6 nowrap | February 2, 1911 –March 3, 1921
| rowspan=6  | Republican
| rowspan=6 align=right | Asle Gronna
! rowspan=6 | 6

|- style="height:2em"
| rowspan=3 | Re-elected in 1911. | rowspan=3 | 5
| 

|- style="height:2em"
| 

|- style="height:2em"
| 
| rowspan=3 | 6
| rowspan=3 | Re-elected in 1914.Lost renomination.
| rowspan=7 | 4
 | |- style= "height:2em" | |- style= "height:2em" | | rowspan=7 | 5
 | Elected January 19, 1909.Died. | nowrap | March 4, 1909 –October 21, 1909
 | | Republican
 | align=right | Martina N. Johnson
! 3
 |- style= "height:2em" | | nowrap | October 21, 1909 –November 10, 1909
 | colspan=3 | Vacant
 |- style= "height:2em" | Appointed to continue Johnson's term.Resigned. | nowrap | November 10, 1909 –January 31, 1910
 | | Democratic
 | align=right | Fountain L. Thompson
! 4
 |- style= "height:2em" | Appointed to continue Johnson's term.Lost election to finish Johnson's term. | nowrap | February 1, 1910 –February 1, 1911
 | | Democratic
 | align=right | William E. Purcell
! 5
 |- style= "height:2em" | rowspan=3 | Elected January 17, 1911 to finish Johnson's term, but did n't qualify until resigning from the U.S. House. | rowspan=6 nowrap | February 2, 1911 –March 3, 1921
 | rowspan=6 | Republican
 | rowspan=6 align=right | Asle Gronna
! rowspan=6 | 6
 |- style= "height:2em" | rowspan=3 | Re-elected in 1911. | rowspan=3 | 5
 | |- style= "height:2em" | |- style= "height:2em" | | rowspan=3 | 6
 | rowspan=3 | Re-elected in 1914.Lost renomination.