It is also published in a book - possibly 'Acclaim the King' or one of the 'Songs of the Spirit' books. Any good music shop should be able to help, or try a church or cathedral bookshop, especially if that church has a large choir. I'm sorry I don't have access to mine at the moment or I'd give you a ISBN to use.

I do know it's in one collection of folk songs, if I could remember the author (brain says Cyril Tawney, but don't quote me on that) you could try a search for an anthology of theirs.

Good luck.

LTS