Graham is probably George Graham (c.1772–1830), who grew up at Gunston Hall with the children of George Mason. He was a son of Richard Graham, merchant of Dumfries, and his wife, Jane Brent Graham. Young Graham had come to live at Gunston Hall when his aunt, Sarah Brent, became the second wife of George Mason in 1780. After graduation from Columbia College, Graham studied law and practiced in Dumfries. He married Elizabeth Mary Ann Barnes Hooe Mason, the widow of his friend George Mason (1753–1796) of Lexington.