The following were among the Flax Growers living in Fermanagh in 1798. There are three Carsons. There are numerous Grahams, a couple of which lived in Trory townland.
FLAX GROWERS LIST 1798
Carson James Cleenish Fermanagh
Carson James Killesher Fermanagh
Carson William Cleenish Fermanagh
Graham Andrew Aghalurcher Fermanagh
Graham Andrew Magheracross Fermanagh
Graham Andrew Magheraculmoney Fermanagh
Graham Arthur Kinawley Fermanagh
Graham Christopher Devenish Fermanagh
Graham Crozier Magheracross Fermanagh
Graham Francis Drummully Fermanagh
Graham George Cleenish Fermanagh
Graham James Aghalurcher Fermanagh
Graham James Aghavea Fermanagh
Graham James Cleenish Fermanagh
Graham James Magheraculmoney Fermanagh
Graham John Cleenish Fermanagh
Graham John Derryvullan Fermanagh
Graham John, Jr. Magheracross Fermanagh
Graham John, Sr. Magheracross Fermanagh
Graham Matthew Magheracross Fermanagh
Graham Noble Derrybrusk Fermanagh
Graham Richard Clones Fermanagh
Graham Robert Trory Fermanagh
Graham Samuel Kinawley Fermanagh
Graham Simon Magheracross Fermanagh
Graham Thomas Derryvullan Fermanagh
Graham Thomas Devenish Fermanagh
Graham Walter Cleenish Fermanagh
Graham William Aghalurcher Fermanagh
Graham William Derrybrusk Fermanagh
Graham William Derryvullan Fermanagh
Graham William Drumkeeran Fermanagh
Graham William Magheracross Fermanagh
Graham William Trory Fermanagh
Graham William, Sr. Magheracross Fermanagh
Grahan John Magheracross Fermanagh
About whether George and Margaret were born in Scotland, have you seen their marriage and death records? Their children's vital records? Censuses they were named in? These should indicate the birthplaces of George and Margaret. I hope this helps!