James Boswell's uncle John was a member of a sect known as the Glasites.
Reader at the English church in Utrecht from 1754 until at least 1763. Son of a French father and an English mother. Formerly a wig maker in London.1
Life with Boswell:
Carron was Boswell's teacher of french in Utrecht 1763-64, and was one of Boswell's few English acquaintances in the city.
Note 1: The Journal of his German and Swiss Travels, 1764, p. 156