Hi Pat, sorry but only read your post now and thought it was for Armagh first. Louth as you say is a county in the diocese of Armagh which itself is a county also. I have some local census on my laptop which I will look at tonight. We do not normally deal with living people unless the local volunteer knows them. I live about 25 miles away and we have no one closer. However if you are on Facebook there is a private Louth Genealogy page where if you join you may be lucky.
There is also a website on Louth if you Google Louth Genealogical Sources. Will add it later.