Oh, it’s these Boyds again! Two marriages from unrelated families
1856 Ann Boyd from North Garvan, Ardgour, her father, Duncan, was a farmer & Free Church elder, and Duncan Cameron from Sunart (his parents were buried on St Finan’s!)
1869 John Boyd, crofter from Blaich, Ardgour, and Isabella McGregor from Morvern
I too, can only see John McLachlan at Camusnagaul; a spirit dealer in 1841 and a ferryman thereafter.
Re-reading the account of the FC tent, I notice that Col. Maclean did offer to negotiate a suitable site for a FC place of worship in Ardgour, but not right outside his door. Camusnagaul is about as far away from it as one could get!