It was written by Jack Hardy. Recorded by him on Landmark, around 1980, available in The Collected Works of Jack Hardy, Part 1, Volumes 1-5, from 1-800-Prime-CD. Lui Collins recorded it quite some time ago. I don't know if the album is available. It was also recorded by Diane Taraz on Songs of Jack Hardy, Volume One, Of the White Goddess. It was on BCN Records, which I believe no longer exists, so I don't know if it's available. Quite possibly the artists have some copies (Taraz, Pendragon, Jem Moore, Ariane Lydon). Try a web search for these artists and e-mail them about purchasing their recordings.