handsomeharry- someone from Limerick, would, naturally be expected to have learned Munster Irish. This is probably the case, but I know of at least one person from the West who learnt Donegal (Ulster) Irish, because that was the dialect their Irish teachers spoke. I know someone else who was brought up in Cork in an Irish-speaking home, by parents from Donegal, she spoke Donegal Irish at home, and Munster Irish in school.
So…probably Munster, but not definitely.