Hi Lady Jane..!
I invite you to take a look at the discussion about "Celtic Music Sheet", if you haven't look at it yet... and you might as well ask Dover directly, because he seems to have a lots of music sheets...!
Best... and good luck..!
P.s. I envy you to be comfortable enough to read music sheets..!
Have you gone to JC's tunematch? He has about a bazillion Irish airs and tunes on it. Fiddlers Companion is another one. I'll bet you find it there.
I love that air. Years ago when we were hanging around with a lot of Irish musicians in the Chicago area, every one gave the snub to Danny Boy, Gary Owen, Rakes of Mallow, and the every recognized Irish Washerwoman. And every one of them is a fine old tune.