James Boswell's uncle John was a member of a sect known as the Glasites.
Sackville TuftonBorn 1733
Died Apr 10, 1786 in Nice, France
8th Earl of Thanet (Lord Thanet). Second son of Sackville Tufton (1688-1753), 7th Earl, and Mary Saville (1700-1751). Married (1767) to Mary Sackville (1746-1778), daughter of John Phillip Sackville and through her brother-in-law of John Sackville, 3rd Duke of Dorset. Father of the 9th, 10th and 11th Earls of Thanet. Tufton received his early education at Westminster School. He died in Nice on April 10, 1786.1
In 1753 he inherited his family lands in Kent, Sussex as well as the Clifford estates in Cumberland.2 Hereditary Sheriff of Westmorland. Sometime member of parliament. At some time he had a London house at Grosvenor Square.
Life with Boswell:
First mentions of Lord Thanet in Boswell's journals are on May 8 and 29, 1763. They met at Lord Eglinton's on both occasions.