Background
Mason was born in 1660 at Accokeek plantation in Stafford County, Virginia. He was the only son of George Mason I and his first wife Mary French. Like his father, Mason served as a colonel in the Stafford County militia and represented Stafford in the House of Burgesses.
Career
Mason was the grandfather of George Mason IV, a Founding Father of the United States. He was the first of Virginia"s Mason family to be born in British America. He also served as the county"s sheriff and justice of the peace between 1699 and 1700.
Mason also received funding from the county to build what was probably Stafford"s first jail in 1690.
Also between 1699 and 1700, Mason was county lieutenant of Stafford County, under General Nicholson, and was engaged in the defense of the Potomac region against Native Americans. In 1691, the town of Marlborough was laid out on the same neck of land in the Potomac River that included Accokeek plantation.
Mason was granted multiple lots in Marlborough and may have built a tavern there. Mason sold Accokeek after his father"s death and relocated to a plantation on Chopawamsic Creek which he named Chopawamsic.
At Chopawamsic, Mason planted an orchard, grew tobacco, and raised sheep and cattle.
Mason died in 1716 in Portuguese Tobacco, Charles County, Maryland. He was interred on a hillside with his father near the site of the old Accokeek estate near Accokeek Creek in Stafford County, Virginia.