Robert McCoy born in Carlisle, Pennsylvania (birth date unknown). He served as prothonotary of Cumberland County, Pennsylvania. He was a Brigadier General of the militia and a state canal commissioner.
McCoy was elected as a Jacksonian to the Twenty-second Congress to fill the vacancy caused by the death of United States Representative William Ramsey. He died in Wheeling, Virginia (now West Virginia) in 1849.
- United States Congress. "Robert McCoy (id: M000375)". Biographical Directory of the United States Congress.
- The Political Graveyard