My comments are based on unevidenced research by others where it is stated that Rev. William Douglas, by his wife Nicholas Hunter, had a son, Captain William James Douglas, born 1733, who was an army officer who was killed at the battle of the Plains of Abraham on 13th September 1759. He was a widower, his wife probably dieing in childbirth, and left a daughter, Jane, who married Captain Thomas Condon Mellish.
The more information you can give about the people you mention, the more chance there is of someone else connecting with your family.
Dates and places of births, deaths and marriages all help to place families.
Professions also help.
'My great-grandmother mother was a Douglas from Montrose' does not give many clues to follow up! But a bit of flesh on the bones makes further research possible. But if we are told who she married, what his profession was and where the children were baptised, then we can get to work.
Maybe it is time to update the information in your profile?