Background
Marshall was the only son of Sergeant Marshall, a lawyer, and was educated at Westminster School.
Marshall was the only son of Sergeant Marshall, a lawyer, and was educated at Westminster School.
He matriculated at Jesus College, Cambridge in 1806, graduating Bachelor of Arts in 1810, and Master of Arts in 1814. He was called to the Bar at the Inner Temple in 1815. Marshall was knighted in 1832 and appointed Chief Justice of Ceylon on 18 February 1833, succeeding Richard Ottley.
He held the position until his resignation on 3 March 1836, when he was succeeded by William Norris.
Marshall produced the first book on Sri Lankan Law. He also published Term Reports Common Pleas and Marshall on Insurance.
He died at his London home in 1873.