Merry ploughboy?

Moderating might take a little while longer than usual and here's a clue as to why:

1. I am a merry ploughboy and I plough the fields by day
Till a sudden thought came to my mind that I should roam away
For I am sick of this civilian life since the day that I was born
So I am off to join the I.R.A. and I am off tomorrow morn.

Chorus:
And we're all off to Dublin in the green,
Where the helmets glisten in the sun
Where the bay'nets flash and the rifles crash
To the rattle of a Thompson gun.

2. I'll leave behind me pick and me spade, I'll leave behind my plough
I'll leave behind me horse and me yoke, no more will I need them now
And I'll leave behind my Mary, she's the girl that I adore
But I wonder if she'll think of me when hears my armalite roar.
Chorus:

3. And when this war is over, and dear old Ireland is free
I'll take her to the chapel on the hill and a rebel's wife she'll be
Well some men fight for silver and some men fight for gold
But the I.R.A. are fighting for the land that the Saxons stole [alt. the land De Valera sold]
Chorus:

I'll be back on the 30th.