John Thomson Mason

John Thomson Mason (15 March 1765 – 10 December 1824)[1][2] was an American lawyer and Attorney General of Maryland in 1806.

[1][2] He was the third child and youngest son of Thomson Mason and his wife Mary King Barnes.

[1] Mason operated a plantation in what was then Washington County, Maryland near Elizabethtown (now Hagerstown using enslaved labor.

[3] Admitted to the Maryland bar, he attained high rank,[4] but twice declined the office of United States Attorney General when it was offered by Presidents Thomas Jefferson and James Madison.

[5] Mason ran for one of Maryland's seats in the United States Senate in 1816, but lost.