Heywood,
Yeh thats for sure!
It has to be put down to an 19th century longhand typo of which we see many in census records as there is not a place on the island of Ireland with a Corther. I guess it is just down to whom wrote it, how it sounded phonetically to that person (especially if they were not Irish themselves). People then like now had speech impediments, etc,etc, we'll never know either way. There are not many records in East Mayo I can search (date for wise) I might be lucky with a marriage from 1840 onwards, though I will try Killasser parish 1847 first as they may have got hitched there seems to be where the O'Ruadháin's aka Ruane's hailed from in Gallen. But it could be anywhere in Mayo county. I will just have to be patient and search through each RC parish with dates that would fit. I have made a list up now and deleted the ones with late records. Just hoping Sabina Cunningham death cert June 1861 will state she was Mary's Ma, either by relationship to who reported it, just hope it was Farrell or Mary. Otherwise I won't have a surname, and I am sure plenty Farrell Ruanes married many Mary's in Mayo. Good thing is though Farrell is not too popular. My e mail buddy gave me the death info so it should be her as this guy is great at this sort of stuff. Thanks Heywood!