The "Holy Ground" is a quarter of Cobh (once known as Queenstown), which was inhabited mainly by fisherman, so the song is also known as The Cobh Sea Shanty. The Holy Ground is actually a set of Irish lyrics to the songs, The Lass of Swansea Town. (This info according to a source I didn't note - I had it on my page before I was a fanatic about such things.)

I have the lyrics to all three and a midi by Brian Hicks at The Holy Ground (http://www.contemplator.com/folk3/holygrnd.html).