Hi, Chris. I went looking for this song for you and found a great site which I started a thread on, the FolkLib Index one. Anyway, I saw a discography on there for Michael Cooney, but none of the titles looked likely to me, but I also haven't heard the song.I noticed that he has done a lot on Folk Legacy. Have you asked Sandy Paton whether he knows this? I'll bet he could point you in the right direction if he doesn't know it. You can send him a personal message here or go to the Folk Legacy Records website, which, if I remember right, is www.folklegacy.com.
Hope this helps. Good luck.
katlaughing