I research the Irish Family History Foundation's database. It contains 12,800,000 surviving rcds for abt 70% of Irish counties. Rcds are increasingly sparse B4 1840, rare B4 1800. Cos. Donegal and Derry were recently added to the database.
Note 1 - Without a KNOWN county, the chance of an ancestor's rcds NOT being in this database is AT LEAST 30%.
Note 2 - Only 1/2 of Co. Cork's rcds are in this database.
Note 3 - The RC church kept control over most parish rcds from Tipperary (north). These are ONLY available thru the Tipperary Family History Research center at a substantial fee (regardless of outcome).
For Pat(rick) Galvin M 1877 +/- 4 yrs somewhere in Ireland, I found 11 rcds. None were in the same counties as found for Nora.
For HoNORA McAuliffe M ditto, I found 2 rcds: 1875 Cork, and 1878 Antrim.
For Pat(rick) Galvin B 1857 +/- 4 yrs somewhere in Ireland with the father's forename unknown, I found 20 rcds - too many to summarize here, but 11 were in the same counties found for Nora below.
For HoNORA McAuliffe B 1854 ditto, I found 6 rcds: 1850 Cork, 1851 Cork, 2-1852 Limerick, 1853 Limerick, and 1857 Limerick.
I conclude: 1) the rcds didn't survive. 2) The rcds haven't been transcribed, or 3) The events occurred outside Ireland.
Google the Foundation's name to lead you to this database. Register, opt to be notified as rcds are added and browse. Pls post your search results to my genforum msg.