Well, THIS is surprising! That's the EXACT version I heard on the Garrison Keillor album all that time ago! (not the same RECORDING, they were older in that one, but definitely the same group.)
Melody wise, I think I like the Gaelic Storm version best (like the harmonica)
Then there is the Irish Rovers version, which, while not having the most daring music DOES include the "lost" (second) verse.
There are also a few versions out there that swap Belfast with Dublin, possibly because there are some people in the Irish Free State who STILL don't want to have anything to do with Northern Ireland (I've heard Mooney turned to Murphy, for probably the same reason.)