We don't know if Arthur and Catherine came to Glasgow but thats where were going with it now. In the hope that if we can find Arthur or James death certificates we may be able to obtain a county to start from.
Unfortunately, if Arthur did come over from Ireland, it's unlikely that his birthplace would be given on his death certificate. It should be the same with James also.

However, there
is another line to query. I mentioned a Peter Donnolly marrying to an Ann Kane, giving the same parents as James. This was in Glasgow 1855. The certificate
should give the location in Ireland; however, it may depend on how much information the registrar asked!

Hope this helps.
hume24