Montana's 1st congressional district

From 1913 to 1993, Montana had two congressional districts. From 1913 to 1919, those seats were elected statewide At-large on a general ticket. After 1919, however, the state was divided into geographical districts, with the 1st district covering the western part of the state, including Missoula, Great Falls, Butte, and Helena.

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
District created on March 4, 1919.
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
District eliminated in January 3, 1993.

References

• 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