The song Carrig River is indeed a Wexford song written by James Nolan and my great great uncle James McGrath. These men would walk to Carrig every evening and sit for a while by the river. Carrig is about 3 miles outside Wexford town and was a very popular walk for the towns people on a Sunday. there is a river carrig which flows into the Slaney at Ferrycarrig. Lovely song
Regards. Anita McGrath-O'Hara