Hi Jillity, I'm a decendent of Hannah and James. Hannah died quite young, in her 30s. She had 7 daughters with James Wilson. She died on 22 Apr 1784. I've been to her grave in County Meath. She is buried with her father in law, also James, a daughter who died as an infant and her sister in law (also died as a young woman). On this forum you'll see I queried a Hannah Jane Masterson - that would have been her granddaughter. I think my ancestry family tree is probably the most up to date for Hannah and James - I can provide you with a link and other useful info. Information about James is very, very scarce - he's my area of focus at the moment. It's just strange that I can't find out where he is buried given he was a prominent, wealthy, Anglo Irish landowner who married daughters of two other such prominent families.
I can post more again on this, just happened to find your post late at night when I was Googling for any leads on James Wilson!