Served as an associate justice of the U.S. Supreme Court from 1829 to 1861.
He founded a weekly newspaper called The Western Star in 1807.
He was known as The Politician on the Supreme Court for his associations with every political party.
He was the son of Ferguson McLean and Sophia Blackford. He had a son named Nathaniel with wife Bella Ludlow.
He was nominated to the Supreme Court by President Andrew Jackson.