The online Irish civil registration index is not working correctly. The free search facility, which is a 'pilot' collection of the Family Search website (run by the Church of Latter Day Saints / Mormons), has been returning some strange and confusing records for a few days.
It appears there is a fault caused during a recent upgrade of the site. Marriage records appear to be the worst affected, and the 'place' filter (for registration districts) is either not working or appears to have no command of geography!
Since it was launched just under 18 months ago, this online facility has become a favourite tool for Irish genealogy researchers, especially for those who cannot get to the physical index books at the GRO Research Room in Dublin. While it is 'out of action', you might like to see if any of the alternative sources of birth, marriage and death records could be of help to you. You can find details on Irish Genealogy Toolkit's Civil Registration pages.
Irish Genealogy News will keep you up to date with any developments and will confirm when the online problem has been rectified.