The Search Extract 1851, lists the address as Bay View Cottage, Priest's Road. Occupants; John power and Kate Power nee Lyons, Children; Mary, Maurice, Bridget and Margaret. There was no John. I presumed that your great grandfather hadn't been born yet. I don't have any later connections. I will look in my notes tomorrow and see if I can find their ages.
Sorry for the confusion.
Ivan.