As James Wilson appears to be part of the landed gentry, your next step would be to look through the registry of deeds on Familysearch regarding the land transactions and with luck you might find a marriage settlement which would confirm his wife’s maiden name. Also check the newspapers for marriage announcements.
Yes, thank you. I'll have a look at all those tomorrow. There is a baptismal and burial record for their daughter Hannah (My third great grandmother). She was born in 1777 and died in 1833, so we're looking a something a bit earlier than that.
I believe they were part of the landed gentry. They were all very well connected. As far as I can tell, none of my family in Ireland actually originated in Ireland and I have no Irish in my DNA.