Lawrence Arthur Dumoulin Cannon

Lawrence Arthur Dumoulin Cannon was a Canadian lawyer, politician, and Puisne Justice of the Supreme Court of Canada.
Born in Arthabaska [Regional County Municipality, Quebec|Arthabaska, Quebec], the son of Lawrence John Cannon and Aurélie Dumoulin, he received a Bachelor of Arts degree in 1896 from Université Laval. In 1899 he received an LL.L also from Université Laval. He was called to the Bar in 1899 and practised law. His brother was Lucien Cannon, a politician and cabinet minister.
In 1908, he was elected to the City council of Quebec City. In 1916, he was elected to the Legislative Assembly of Quebec for the riding of Québec-Centre as a Liberal. He was re-elected in 1919 but was defeated in 1923.
He returned to private practice until 1927, when he was appointed to the Appeal Division of the Court of King's Bench of Quebec.

Justice of the Supreme Court of Canada

On January 14, 1930, Mackenzie King appointed Cannon to the Court at the age of 52 to replace Pierre-Basile Mignault, who reached the mandatory retirement age and stepped down on September 30, 1929. The appointment was delayed by Justice Minister Ernest Lapointe who hoped to appoint the new Quebec justice at the same time as the new Chief Justice of Quebec. Prior to Cannon, the position was offered to Louis St Laurent and possibly Louis Philippe Demers.
Cannon served on the Court until his death in 1939.

Personal life

He married Mary Corrine Fitzpatrick, the daughter of former Chief Justice of Canada Charles Fitzpatrick.
His great-nephew Lawrence Cannon was a Member of Parliament from 2006 to 2011, serving in Prime Minister Stephen Harper's cabinet.