Thank you to all of you who gave me much to think about. Unfortunately John and Mary had no further children after David so can't follow girl's names as suggested. Yes Mary was married to a Donald Cameron and Mary had also been a Cameron. Her father was Alexander and an

inn keeper.
She had 5 sons with the last one being John Cameron. Her first son to John Munro was also called John so she had 2 Johns and when living in Melbourne both John's were known as Munro. On Mary's death certificate only the 2 sons to John Munro were mentioned. There was obviously a rift between her Cameron sons and herself. Kaye