Thanks for the replies.
The website you quoted, forfarian, gives a map of the area, 3 dates of 1792, 1792, and 1845 and the parish priest's names (obviously, the first 2 are the same man). It also gives a description of the boundaries of the village. Entering Friars Carse Farm (thank you for that titbit of info. CoIC!) in the Help box showed that:
"...After the Reformation, the ESTATE of Friars Carse was acquired by the Laird of Allisland or Ellisland, an adjoining farm...".
The map shows a couple of wooded areas and a loch (I don't think it's very big) so gamekeeping may have been a necessity.
It would appear that there is now a country house hotel "set in a 45-acre" estate, which maybe is the remains of a large estate way back when.
So, no sign of a 'big estate', but maybe the farmer needed a 'gamekeeper' for the land he did hold. As my rellie (Humprey Paterson 1789 - bef. 1841) was only 11 when the 18th century ended, it would seem that he probably worked there from around 1810.
I think I shall have to dig around a bit and maybe visit the village when next we visit Scotland.
But thank you, both, for your time and effort.
lydiaann