I think you need to get a copy of Marianne McLean's The People of Glengarry. You may know that Kenyon was settled in 1783 by the first United Empire Loyalists of Ontario. After two emigrations from Inverness in 1773 & 1774 to Tryon County, New York en masse from the Glengarry farms, they fought on the British side in the American War. About 300 men with the surname McDonell were in Tryon. My own ancestor had a son named Donald McDonell who married a Margaret McDonell at StAndrews West, the first stone RC church in Upper Canada, north of Cornwall. That was in 1818, a little early for you yet!