I Am Looking for My Gggrandfather He Came to CO Durham England Between 1845 and 1860 He Came from Dunmore Galway Ireland with His Wife Catherine OR...

John was born 1840or 1841 in Dunmore and I think he was lodging with Murphy family when he was 10 years old.I don't know if my GGGrandfather Michael came over with him or not.They were Catholics and I have all the children's baptisms from Dunmore Church but can not find the parents marriage or Births anywhere.I would like to know where the family lived in Co Durham.I am led to believe they all lived in the Gateshead or South Shields area.I hope you can help.Kind regards Rose.Sorry In 1881 census John lived at 26 Birketts Buildings in Jarrow Co Durham with his wife Bridget Alan from Northumberland and his children.