The duel, February 6, 1819, between Armistead T. Mason and John M. McCarty, both residents of Loudoun County, was the second "affair of honor" to be settled on the now famous field of Bladensburg. They were cousins, who became enemies during Mason's brief term in the United States Senate. Mason, known as "The Chief of Selma," was a graduate of William and Mary College and the commander of a cavalry regiment[26] in the war of 1812. He later became brigadier general of the Virginia militia. He married and took up his residence at Selma plantation, four miles north of Leesburg. Wishing to make it possible for the Quakers of Loudoun to contribute their share toward the support of the army, Mason introduced in the Senate a bill to permit, in case of draft, the furnishing of substitutes on payment of $500 each. For this McCarty branded him a coward, and thence sprung a succession of bitter quarrels, the real basis of which was a difference of political opinions. The details of both sides of the feud were published weekly in the Leesburg "Genius of Liberty," and later were issued in pamphlet form as campaign material. [Footnote 26: Many of the Germans of Loudoun served in this regiment which participated in the Battle of Baltimore.] Mason's side was defeated. He earnestly wished to avoid a duel, but McCarty continued to provoke him, with the hope of compelling him to fight. This he finally decided to do. He left his home without revealing his intentions and on reaching Washington made his final preparations with great deliberation. "The Chief of Selma" fell February 6, 1819, his heart pierced by the ball of his antagonist. He was but 32 years of age. His body was borne to Leesburg, where it was buried in the Episcopal churchyard, with an imposing Masonic ritual. The grief of his slaves was painful to witness. His only child became an officer in the United States army, and was mortally wounded in the battle of Cerro Gordo. HOME OF PRESIDENT MONROE. "Oak Hill," the country seat of James Monroe, ex-President of the United States and author of the world-famed Monroe Doctrine, is situated near Aldie, in Loudoun County, on the turnpike running south from Leesburg to Aldie, about nine miles from the former and three from the latter place.