The only concrete info I have is Myles married Margaret McPhee, and lived Lot 27? died on lot 30, both 8th concession. I have a newspaper clipping for John Myles McMillan. 100 buggy's lined up outside the church at his funeral. He was born and died lot 30 8th conc Lochiel. I am taking liberty to assume due to the lot and con location, that this is Myles and Peggy's son??
Peggy was from Plantagenet, so maybe as her and Myles aged, they turned the farm over to John Myles, and moved back up to Plantagenet in retirement?
Do you want to have a look at my tree?