Hi James. John also had a son by the name of John McDonald b. abt 1815 according to books and census. This John McDonald married Mary Ann Campbell on 04 Jan 1848, from records of the Church of Scotland at Cornwall The Minister was Hugh Urquhart who was the minister at St. Johns but was also a curcuit rider. John and Mary had a son Roderick who was my grandfather's father. Family stories say that the McDonald family were Presbyterian when they left Scotland and then the mother and most of the children claimed Roman Catholic as their religion. Which is why Nancy is buried at St. Columba. Her father was said to have been buried near her. Church records show that McDonald had two plots at St. Columba but only Nancy has a tomb stone. Mary is probably buried at St. Alexander in Glengarry. I have followed some of the children of Ewan and Randal. The Scots of 1802 is recorded in their own book. As for the families knowing each other it is hard to say but many of the Scots in Glengarry and Prescott knew of each other.