Off of their eponymous second album, released in 1984 by Kicking Mule Records, KM 327.

That info's from here: http://www.discogs.com/Scartaglen-Scartaglen/release/6766157

Also, on that album, it's a "Will Ye Go" is the second song of a medley, the first song being "Starshell." I couldn't find that song, either, though.