According to Wikipedia, Sir William Buell Richards, was the first Chief Justice of Canada.
Richards was born in Brockville, Upper Canada to Stephen Richards and Phoebe Buell. He earned law degree at the St. Lawrence Academy in Potsdam, New York and then articled with his uncle Andrew Norton Buell in Brockville. He was called to the bar in 1837 and continued to practice in Brockville with George Malloch until 1853 and then with his uncle again.