Thank you for this search. I purchased the same baptismal record from the RootsIreland pay-website and your information is accurate, except it does not mention the "Swords RC" church or any church on the baptism record. Can you share a link where the church name shows up? (FamilySearch?) Thanks.
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The baptism is not on FamilySearch. It's possible, but a little complicated, to locate the parish/denomination and some details on parents from the free index which is how I found out, but it should be shown on the transcript - usually under a general title such as 'Parish/District...' or similar.
Records were kept by parish rather than by church , but it's most likely that the baptism took place in whichever was the parish church at the time.
You have to select a county centre to allow parish searches. In this case North Co. Dublin aka Swords Heritage Centre.
Shane