Hi Pat,
I have been following this discussion with interest as my aunt married into your McClay family as you know.
You might be on to something with the Stranorlar connection - you probably have this information but I have 9 McClay/McCleas in the 1796 spinningwheel Premium Entitlements List and Oliver, John and Robert are all in Stranorlar. The rest are farther up the county but an Andrew McClay in the Laghy tree is supposed to have come 'through the gap' as a bounty hunter. For the benefit of those unfamiliar with Donegal 'through the gap' refers to the Barnes Mor mountain which separates the Letterkenny area from the Donegal Town area of the county, and anyone coming from Stranorlar to Laghy would certainly have come 'through the gap'!! What sort of bounty he would have been hunting I have no idea.
I have 37 pages of McClays - I will keep digging and post if I find anything new.
Regards,
Carol