They lived in Rotherham, which I knew, and I have them traced on all cenus from 1871 to 1901 where they lived in Oldham. I have the info this end, it is before they married, and lived in Ireland that I am searching out.
On one of their sons Birth Cert it said Mayo, and a aunty knew thew lived in Castlebar, but as they married in Rotherham did they both live in Castlebar, or just one of them?
I now have both their fathers names John Byrne and Patrick Costello.
They changed their (Martin and Bridget) names in England to Burns on the 1901 census, but on that they also said all of the children were born in Oldham, which we know is not true.