Thanks for the reply. Yes the marriage in 1829 is my Darby and Ann and they were Catholic. I didn't realise that Ballymore Eustace was in both counties but that would explain some quirks I have found on Ancestry and Family Search. It would seem that their first child was Patrick 1831, Margaret 1832,Darby 1834, Catherine 1836, Bridget 1838, Maria 1839, John 1840 and Matthew 1846. I found all these in the nli registers.
Just not sure where Darby lived or where the Toomy family came from.