Armistead Thomson Mason (August 4, 1787{spaced ndash}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. ==Ear...