Christy Moore sings GREEN ISLAND on his album "Smoke & Strong Whiskey" (1990). According to Allmusic.com, it's attributed to "Erwin McColl"--which sounds like a misspelling of "Ewan MacColl."
I am unable to find any evidence that anyone else recorded it.
https://www.youtube.com/watch?v=2r4pAmp6aN8