The original query was about the tune.
The first line is further away from the wellknown Irish tune that is perhaps the source, but the second line closer to the Irish wellknown version of On The Banks Of The Roses.
Ewan MacColl set a song to it about new industries driving out old - The Gallant Colliers - and called it traditional Irish.
I know it's not the same tune, by the way, but to me it's of the same 'tune family'.
A possible more distant relative again is the Scottish The Burning Of Auchendoun or Willie Mackintosh tune?