Your Mothers father was John
Slevin (my great great grand father) of 'Fair Street'. The
Slevin family (grave) plot is in a place called Colpe just outside
Drogheda. It provides the names of your great great grand parents. I have the records in my office in work and I'll email you more information about them tomorrow. I know the Slevin's were very comfortable and lived in a splendid street in
Drogheda named 'Fair Street'. Now mainly a street occupied by Doctors, Dentists surgeries etc. Mary married a Sea Captain called James and they had 5 Children as far as I recall. Mary Ann being the eldest, then
Denis, James, Joseph. Your probably not too interested in the
Lyons Family but I'll find as much out about the Slevins as I can