The book I have (Songs and Dances of Ireland)gives slightly different second verse

2 They'll give a party when I go home, they'll come from near and far.
They'll line the road for miles and miles with Irish jaunting cars.
The spirits will flow and we'll be gay, we'll fill your hearts with joy.
The piper will play an Irish reel to greet the Yankee boy.
We'll dance and sing the whole night long, such fun as never seen.
The lads will be decked in corduroy, the colleens wearin' green.
There'll be thousands there that I never saw, I've been so long away,
But my mother will introduce them all and this to me will say:

Not vastly different. I remember my dad singing this in the 50's - he had a lot of "Oirish" music-hall type songs.
About the same time "Song of the Clyde" sung by Kenneth McKellar was a frequent request on BBC Radio programmes, especially "2-Way Family Favourites", which linked up British forces overseas with their familes in the UK.

Wassail! V