Armistead Thomson Mason
|Armistead Thomson Mason|
|United States Senator
January 3, 1816 – March 4, 1817
Serving with James Barbour
|Preceded by||William Branch Giles|
|Succeeded by||John Wayles Eppes|
August 4, 1787|
Armisteads, Louisa County, Virginia
|Died||February 6, 1819
Bladensburg dueling grounds, Bladensburg, Maryland
|Political party||Democratic-Republican Party|
|Spouse(s)||Charlotte Eliza Taylor|
|Children||Stevens Thomson Mason|
|Residence||Selma, Leesburg, Virginia|
|Alma mater||The College of William & Mary|
Armistead Thomson Mason (August 4, 1787 – February 6, 1819), the son of Stevens Thomson Mason, was a U.S. Senator from Virginia from 1816 to 1817. Mason was also the youngest person to ever serve in the US Senate at the age of 28 and 5 months even though the age of requirement for the US Senate in the constitution is 30 years old.
Early life and education 
He was born at Armisteads in Louisa County, Virginia, graduated from the College of William and Mary in 1807 and engaged in agricultural pursuits until he became colonel of Virginia Volunteers in the War of 1812 and subsequently brigadier general of Virginia Militia.
Political career 
He was elected as a Republican to the United States Senate to fill the vacancy caused by the resignation of William Branch Giles, despite being constitutionally underage for the office. Mason served from January 3, 1816, to March 4, 1817. He then moved to Loudoun County, Virginia where he was an unsuccessful candidate for election to the Fifteenth Congress (1817). It was a bitter campaign that gave rise to several duels: Mason himself was later killed in a duel with his second cousin, John Mason McCarty, at Bladensburg Duelling Field, Maryland, as a result of this campaign. He is buried in the churchyard of the Episcopal Church at Leesburg, Virginia.
Marriage and children 
- Stevens Thomson Mason (1819–14 June 1847)
Armistead Thomson Mason was the grandnephew of George Mason (1725–1792); grandson of Thomson Mason (1733–1785); son of Mary Elizabeth "Polly" Armistead Mason (1760–1825) and Stevens Thomson Mason (1760–1803); nephew of John Thomson Mason (1765–1824); second cousin of Thomson Francis Mason (1785–1838) and James Murray Mason (1798–1871); brother-in-law of William Taylor Barry (1784–1835); brother of John Thomson Mason (1787–1850); uncle of Stevens Thomson Mason (1811–1843); and first cousin of John Thomson Mason, Jr. (1815–1873).
|Ancestors of Armistead Thomson Mason|
|United States Senate|
William B. Giles
|United States Senator (Class 2) from Virginia
January 3, 1816–March 4, 1817
Served alongside: James Barbour
John W. Eppes