William "Buy" Cameron of Charlottenburgh also had a descendant who took a DNA test. There is a relationship between William Buy and the family of William and Donald h/o Margaret Fraser of Cornwall and Roxborough. ..they could be cousins or brothers or uncle/ aunt. No one knows much about where William Buy came from.
Neither the Clunes Camerons nor the family of John Cameron "the wise" are related to William Buy or the William Cameron of this post.
We are still looking for a descendant of Alan Cameron of lot 7 in the 4th concession of Cornwall whose descendants moved to South Gower and Brandon Manitoba who would be willing to take a DNA test. One of Alan's sons married another Cameron from the Pictou area of Nova Scotia and we suspect a family relationship.