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Pierre-François Casgrain, PC (August 4, 1886 – August 2, 1950) was a Canadian lawyer and politician. He was Speaker of the Canadian House of Commons from 1936 to 1940.


Pierre-François Casgrain

19th Speaker of the House of Commons
In office
February 6, 1936 – May 10, 1940
MonarchEdward VIII
George VI
Governor GeneralThe Lord Tweedsmuir
The Earl of Athlone
Prime MinisterWilliam Lyon Mackenzie King
Preceded byJames Langstaff Bowman
Succeeded byJames Allison Glen
Member of the Canadian Parliament
for Charlevoix—Montmorency
In office
1917–1925
Preceded bynew riding
Succeeded byriding abolished
Member of Parliament
for Charlevoix—Saguenay
In office
1925–1941
Preceded bynew riding
Succeeded byFrédéric Dorion
Personal details
Born(1886-08-04)August 4, 1886
Montreal, Quebec
DiedAugust 2, 1950(1950-08-02) (aged 63)
Political partyLaurier-Liberal (1917–1921)
Liberal Party of Canada (1921–1941)
Spouse(s)Thérèse Casgrain
Professionlawyer
CabinetSecretary of State of Canada (1940–1941)

Born in Montreal, Quebec, his father was a physician. Following the death of his mother when he was three years old, he was raised by his grandmother. Casgrain graduated in law from Université Laval and practiced in Montreal where he worked as an organizer for the Liberal Party of Canada and the Quebec Liberal Party.

When his father-in-law, Sir Rodolphe Forget, the Conservative Member of Parliament (MP) for Charlevoix, retired from politics, Casgrain decided to run for the seat as a Liberal in the 1917 election. The campaign occurred as a result of the Conscription Crisis of 1917. Casgrain ran as an opponent of the draft (see Laurier Liberals, and was elected to the House of Commons of Canada.

From 1921 to 1925, Casgrain was the parliamentary whip of the Quebec Liberal caucus, and from 1926 to 1936, he was the Chief Whip of the Liberal caucus.

Casgrain was nominated by Prime Minister William Lyon Mackenzie King to be Speaker of the House in 1936. He served in this position until 1940 when he was appointed to the Cabinet as Secretary of State for Canada, a position that had sweeping emergency powers during World War II. On December 15, 1941, Casgrain was appointed Puisne Judge of the Superior Court of Quebec and retired from politics. He died in 1950.

Casgrain's wife, Thérèse Casgrain, was a prominent political figure in her own right.

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