It never occurred to me that this one could be done in 4/4 but obviously it can, have to get my ears on that Irish Rovers recording somehow! I have the Dubliners' version (recorded 1966) and Danny Doyle's version (rec?; on a collection of Irish (!!?) folk songs) which both are in 3/4. I also remember hearing it in some Dublin pub a couple of years ago played by a local band also in 3/4. I assume that both music and lyrics are by Glyn Hughes, at least on the records that's what is printed to be the author - or is the music perhaps trad?

greetings from Joensuu, Finland Arto K Sallinen