James Boswell's uncle John was a member of a sect known as the Glasites.
Heinrich Ernst Gotter
Heinrich Ernst GotterBorn 1703
Referred to only as "M. de Gotter" by Boswell, the editors of The Journal of his German and Swiss Travels, 1764 has tentatively identified him as Henrich Ernst Gotter, who was Master of Rolls (1735-), Counsellor of Legation (1743-) and Head of the Privy Council's secretariat (1752-1772) in Gotha.
Gotter married firstly (xxxx) ??? and secondly (1762) Madeleine von Wangerheim. One of his sons were the poet Friedrich Wilhelm Gotter (1746-1797).
Boswell had a recommendation to see Gotter in Gotha on October 17, 1764, but Gotter was out of town at the time, and the two probably never met each other.