James Buchanan Macaulay
Colonel Sir James Buchanan Macaulay, CB (3 December 1793 – 26 November 1859) was a lawyer and judge in colonial Canada.
Macaulay served as an officer in the War of 1812 with the United States and fought at the Battles of Ogdensburg, Oswego, Lundy's Lane, and at the Siege of Fort Erie. After the war, he studied law and was admitted to the Canadian bar in 1822. In 1829, he was appointed a temporary judge of the Court of Queen's Bench, and a permanent judge in 1829. From 1849 to 1856, he served as Chief Justice of the Court of Common Pleas. He later became judge of the Court of Error and Appeal and chairman of the commission that revised and consolidated the statutes of Canada and Upper Canada into three volumes.