Thanks for the interesting history. Both the Plantation and the famine could be motivators for our Lundies as well, I guess, of family ties at other times. I have been looking for reasons why they might have moved back to Scotland in 1805, but texts so far have only discussed further migration from Ulster to the new world. But I might come up with something yet.
Re Inch, I did see it but was giving it further thought. I think you are right that it is a strong possibility which should not be overlooked.
Concerning James, nothing on Ancestry had popped up about him so I did not have him in my tree until you mentioned him. Is it possible that he is not a sibling, but the son of another Lundie family? Fingers crossed your friend might find out more. I don't really have proof of birth for any of the siblings.
For Hugh Lundie I have born 1779, married 26 Jul 1814 Elizabeth Johnston in Galston, married 1830 Margaret McConnel in Fenwick, married 19 Nov 1835 Caroline Ballantyne in Gorbals, died 26 July 1857 • Houston and Killellan, Renfrewshire (this from Ancestry trees only, no source)
Elizabeth's death record said he was a labourer, 1815 birth cert for son John says labourer. 1859 marriage cert dtr Caroline said her father Hugh Lundie was a farmer. Son John's 1869 death cert says farm servant. Caroline's death cert says 'contractor'.
I've seen a lot of wedding certificates where the father's profession was made somewhat grander than reality, so I guess something like that was happening here.
(Also I've seen a lot of mindless copying on Ancestry and while I've been sometimes guilty myself, I do try to evaluate things.)
I don't want to exhaust you! So maybe we can start with Hugh and do Caroline next time?
Best regards.