During his stay in Berlin in 1764, Boswell lived in the house of Karl David Kircheisen, the president of the Berlin city council.
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