James Boswell's uncle John was a member of a sect known as the Glasites.
Elizabeth PlumsteadBorn 1734
Daughter of William Plumstead and Rebecca Kearney. Married to sometime Lt-Gov of New York, Andrew Elliot (d. 1797) of Greenwells, son of Sir Gilbert Elliot (d. 1766), Lord Minto, a colleague of Alexander Boswell's in the Court of Session. They had at least three daughters.
Life with Boswell:
Boswell mentions her being present at a dinner party at John Trotter's on 19/5-63. He doesn't tell us anything about her, apart from her being American, and married to Mr. Elliot.