You have a Jean Douglass 1748. I have Jean Douglass unknown birth date or place , but she would be about that age. She married John Reid, also no documents found yet, and their daughter Anne Reid was born 13 March 1775 in Cockpen. OPR for Cockpen, Ref 676/1 1775. Ann lawful Daughter to John Reid and Jean Douglas his spouse was born at Dalhousie the 13th and baptised the 19the of March 1775 in presence of the Congregation. This gives her parents as John Reid and Jean Douglas. There is no record of John and Jean’s marriage. They also had sons named John (junior) and James.
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?