 George Mason IV spent his early adolescence and began his early education at Chopawamsic and resided there until the age of 24 when he moved to present-day Fairfax County.Stevens Thomson Mason, son of Thomson Mason, who was first Attorney of the Bar in Dumfries, was born at Chopawamsic in 1760.Thomson Mason and his family resided at Chopawamsic where most of his children were born and later also at Raspberry Plain in Loudoun County.