The birth record is just a month different so seems quite good.
I don’t quite understand how you want to narrow it down more.
Fathers name was Patrick, occupation Farmer on the marriage cert.
1939 register he is married to Daisy Moriarty nee Rees (but previously married to a Nolan) with lodgers Arthur Northwood & William Kearney at 110 Glencoe Rd. I think his name might be mistranscribed as Maureen!
Sorry I am not sure how best to quote sources.
I saw a civil birth record from Chapeltown Co Kerry but in the 1901 & 1911 census the best match was in Tawlaght but fathers occupation either not given or labourer.
there was another family in Ballinloughig with Farmer father named Patrick but birth of Maurice was 1895 I think (Maurice living with Grandfather Michael in 1911 Ballynahaw).
I was also not sure how complete the Irish records are for other counties so could there be other missing matches?
Was hoping to confirm a county at least from another source.
Is that my tree you are looking at? McCracken/ Johnsey?