I do not have much, Agnes Erwin on her marriage certificate to a Peter Rennort in Scotland on the 4th Dec 1874 said she was born 1850 in Clones, Monaghan. I have no information on her parents except there names from the marriage certificate. Unsure when the family move to scotland, sometime between 1850 - 1874. Agnes Father John Erwin worked in the same location as Peter in the locomotive works
On the Scotish census of 1881 shows Agnes born Ireland.
The first child of eight was born sept 1875 all children born in Springburn, Glasgow. I would assume she was Protestant. Desmond