Another stanza (should be 4th):

There's Murphy, the teetotaler, he's gone upon the spree,
And Keogh, the whiskey drinker, now is taking milk and tea,
He's given up John Jameson, and likewise Power and Roe,
Because his heart's distracted by the Pride of Pimlico.

The lass's name, by the way, is Quinn and not Flynn. [This text in Colm O Lochlainn,"More Irish Street Ballads" (Dublin: Three Candles, 1965), 265-6.]