His son and namesake, Walter Jones (1775-1861) practiced law in Washington most of his life and reportedly argued more cases before the U.S. Supreme Court – over 300, including McCulloch vs. Maryland - than any other attorney in American history. A close friend of James Madison, James Marshall and John Calhoun, he also held the rank of Major General of the Army, and rode at the head of the District of Columbia Militia at presidential inaugurations. The younger Jones was also a member of the Columbian Institute for the Promotion of Arts and Sciences, a prestigious society which counted among its members former presidents Andrew Jackson and John Quincy Adams and many other prominent men of the day, including well-known representatives of the military, government service, medical and other professions.[1] Living until the start of the Civil War, he strongly opposed Virginia’s secession.
The elder Jones died in Westmoreland County, Virginia, on December 31, 1815, and was interred there in the family cemetery at "Hayfield" near what is now Callo, Virginia.