CAMPBELL, Sir William, Canadian jurist, born in Scotland in 1758; died in Toronto in 1834. He entered the army as a private, came to America as a non-commissioned officer in a Highland regiment, and took part in the revolutionary war, his military career ending with the surrender of Cornwallis in 1781, when he became a prisoner with the rest of the command. Having regained his freedom, in 1783 he removed to Nova Scotia and devoted himself to the study of law. After practising for nineteen years, he was appointed attorney general of Cape Breton, and elected to the assembly of that province. He was promoted to a puisne judgeship in Upper Canada, and became chief justice upon the retirement of William Dummer Powell in 1825. In 1829 he retired in consequence of failing health, and was succeeded by the attorney general at that time, afterward Sir John Beverley Robinson, bart. On the occasion of his retirement he was knighted.