Don't know if you have this verse or not, it's from Joe Heaney's "The Road From Connemara" (2000).

Some are sleeping neath the waters of Cork harbour
More are sleeping 'neath the good old Irish clay
But their voices seem to cry out "God save Ireland"
From the lonely woods of Upton far away.

The album also has an amazing version of The Valley of Knockanure on it, different tune as well. However it's not a "rebel" album, but an acquired taste folk album, so try and hear it before you buy it.

Re Brendy's comment above, if I can help with anything to do with Irish songs, rebel included, just let me know here on via Personal Message. I have well over 200 rebel songs. All the best and sorry about the poor "Kai Johansen" joke. (he was a Dane who scored a vital cup winning goal for Rangers against Celtic in the 1960s (I was at the game) and some NI Rangers Supporters Clubs are named after him, no doubt much to his amazement.