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I searched on the subscription site Roots Ireland and did not find a Patrick Dunne/Bridget Meagher marriage in Kilkenny. Also, no Peter Dunne/Veronica Kelly marriage.
I expanded the search to all of Ireland and found a marriage in Longford town in 1843. See below.
I could only find one baptismal record for a child of Patrick and Bridget, a son Patrick in 1847. See below.
No evidence of Peter Dunne and Veronica Kelly in Co. Longford.
Dunne and Meagher are very common surnames so it is very possible that this is a completely different couple.
Date of Marriage:27-Mar-1843
Parish / District:LONGFORD
Name:Patrick DunneDate of Birth:
Date of Baptism:03-Jun-1847Address:Not RecordedParish/District:LONGFORDGender:MaleCountyCo. Longford
Father:Patrick DunneMother:Brigid MaherOccupation:Not Recorded
Sponsor 1 /
Informant 1:Thomas MaherSponsor 2 /
Informant 2:Maragret Maher