John Randolph of Roanoke
Tucker was generally known by his middle name. He was born into a socially elite and politically influential Virginia family: his father was the noted legal scholar St. George Tucker, and his half-brother was the famous John Randolph of Roanoke. Tucker's older brother Henry St. George Tucker, Sr., too, went on to have an eminent career as a law professor and Congressman in antebellum Virginia. His nephew Nathaniel Beverley Tucker, a U.S. diplomat and later secret agent for the Confederacy, was named after him. His daughter Cynthia became a notable preservationist in Virginia.