Hello Paddy.
You can consider the Fermanagh Heritage Centre for a paid research, but they can be pretty costly.
My suggestion is send a letter to the Emerson addresses that I sent you, you can almost place a bet that they are related and may well have their genealogy done.
I have provided current addresses to people researching their irish roots, where a surname from the 1800's still shows today and with moderate success, although on a couple of occasions the writer has been requested not to continue making contact, why is a mystery, but I have heard that some in Ireland are concerned about inheritance claims!!
I reckon a letter is your best line of research from here.
Mike.