Hmm, an unrelated family but my 5th great grandmother was born in Kilmory, Arran and moved to Sorn, Ayrshire. I wonder if there was some reason that multiple people from the community moved to the same area. I'm trying to dig into the history of Arran during her life but not getting very far, I do know it's the era of the clearances. Perhaps there was a mass migration over to Sorn.
For general reference, in case they do turn out to be linked some how. My 5th great grandmother was Isabella McNeil, daughter of Donald McNeil. They were from Auchenhew on the south end of Arran. She was born in 1764, and married one Alexander Wright in the Manse of Sorn in 1789.