 According to Thomson Mason's last will and testament, recorded in Stafford County on September 26, 1784, he had bequeathed to Temple, his brother Westwood Thomson Mason and their half-brother, Abram Barnes Thomson Mason, several hundred acres of land along the Potomac River.On November 29, 1803, at the Loudoun County Courthouse in Leesburg, the three brothers filed a document which partitioned the land, with Temple receiving .Temple Mason built his home, Temple Hall, in the Federal style between 1810 and 1812.