Diary of John Adams, volume 2
Dined at Mr. Izzards, with Mr. Lloyd and his Lady, Mr. Francois and much other Company. After Dinner went to the Comedie Francoise, and saw the Brutus of Voltaire and after it, the Cocher Supposé. —As I was coming out of the Box, a Gentleman seized me by the Hand.—I looked.—Governer Wentworth, Sir, says he.— Asked Questions about his Father and Friends in America &c.1
John Wentworth, JA's Harvard classmate and former royal governor of New Hampshire, had arrived in Europe from Nova Scotia early in 1778 (Lawrence Shaw Mayo, John Wentworth, Cambridge, 1921, p. 164–167). His encounter with JA and its aftermath are amplified in JA's Autobiography under the present date, q.v. also on “Mr. Francois,” i.e. Francès.