Dear Javk:
Thank you for your post to Ireland Reaching Out. I have done some previous research on some of the O'Briens in this area. Unfortunately, Youghalarra parish registers only go back to 1828. However, I did take a look at the digitised scan of the marriage entry and it appears that all the parties (bride, groom, and witnesses) were from Youghalarra. This might indicate that they were neighbours. I also noted that the townland of Youghal was mentioned. This may be a good clue for you to look at further for any O'Brien/Brien surnames.
The Tithe Applotment Books may also be helpful as they were created earlier (1823-1837) and there are 3 entries for a John Brien in Youghalarra parish. Thogicae townlands listed are: Carhubawn, Gaughal and Ballymodan. It may be worth looking at these townlands more closely.
I will pass on this query to several Tipperary volunteers who may be able to shed further light. You might also take a look at the Tipperary Studies website which has a lot of very good genealogical information contained in it. The link is: http://tipperarystudies.ie/
The Tithe Applotment Books are here: http://titheapplotmentbooks.nationalarchives.ie/search/tab/index.jsp
If you need any further assistance, please let us know.
Kind regards,
Jane
