Montana's 1st congressional district
From 1913 to 1993, Montana had two congressional districts. From 1913 to 1919, those seats were elected state-wide At-large on a general ticket. After 1919, however, the state was divided into geographical districts.
The first and second districts, therefore, existed from 1919 to 1993.
After 1993, the second seat was eliminated and the remaining seat was elected At-large.
List of representatives (1919–1993)
|Representative||Party||entered office||left office||District home||Notes|
|John M. Evans||Democratic||March 4, 1919||March 3, 1921||Redistricted from the At-large seat
Lost re-election to McCormick
|Washington J. McCormick||Republican||March 4, 1921||March 3, 1923||Missoula||Lost re-election to Evans|
|John M. Evans||Democratic||March 4, 1923||March 3, 1933|
|Joseph P. Monaghan||Democratic||March 4, 1933||January 3, 1937||Butte||Retired to run for U.S. Senate|
|Jerry J. O'Connell||Democratic||January 3, 1937||January 3, 1939|
|Jacob Thorkelson||Republican||January 3, 1939||January 3, 1941||Lost renomination to Rankin|
|Jeannette Rankin||Republican||January 3, 1941||January 3, 1943||Retired|
|Mike Mansfield||Democratic||January 3, 1943||January 3, 1953||Retired to run for U.S. Senate|
|Lee Metcalf||Democratic||January 3, 1953||January 3, 1961||Retired to run for U.S. Senate|
|Arnold Olsen||Democratic||January 3, 1961||January 3, 1971||Lost re-election to Shoup|
|Richard G. Shoup||Republican||January 3, 1971||January 3, 1975||Missoula||Lost re-election to Baucus|
|Max Baucus||Democratic||January 3, 1975||December 14, 1978||Missoula||Resigned, having been appointed to the U.S. Senate|
|Vacant||December 14, 1978||January 3, 1979|
|John Patrick Williams||Democratic||January 3, 1979||January 3, 1993||Redistricted to the At-large seat|
- Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company.
- Martis, Kenneth C. (1982). The Historical Atlas of United States Congressional Districts. New York: Macmillan Publishing Company.
- Congressional Biographical Directory of the United States 1774–present