Sorry I just read the bit where you were asking for suggestions … and I hadn’t read properly. Basically I used the census information to narrow down the likely registration district, and looked for Rose first as I hoped it would be the rarest name, then Margaret. Once I’d got two children with the same parents I went looking for the marriage, and Patrick. And yes you are right it was a common name even after narrowing it down. I wasn’t finding the marriage looking for Patrick so I started looking for Mary McCabe instead.