Owen
I apologize if I took your post incorrectly. I was having a rough day, as I'm sure we all do. The problem with typing is that the underlying emotion cannot be conveyed in what is on the screen.

Matthew
Yes, I have heard this. From my current searchies, it seams the original sources I was reading were wrong. The songs were traditional Caoineadh songs that were sung at the living wakes to the emigrants. I'm guessing the later writers heard one such caoineadh and thought all the others would be the same (being that they didn't speak Irish).
Thanks for your help everyone, this is exactly what I was hoping for. While I didn't end up with a particular song, I've ended up with many more possibilities.
GRMA