Thanks for the reply. There is even earlier (1848) sheet music here with no credits Click here
In fact all sheet music for this song is (I believe) in 4/4 time. (Even so-called "Irish" song books ... which it isn't of course .. but we won't go there at the moment) It seems to be only recently that its been done in 3/4 time.. even though sometimes the singer is reading the words off a page where the dots are in 4/4 time. I could do a midi but it would be pretty basic I was hoping for something more elaborate like Barry Taylor's to put on my web page. If you want to hear it in 4/4 the Corries version is original, even down to "cot" instead of "home". I understand that it was written in 1835.