Hi Ed . . .
Welcome to Ireland Reaching Out . . .to County Tipperary .. . to Roscrea Town . . in the Diocese of Killaloe . . .
Thank you for your query . . . and let us see if we can assist you further . . .
So.. . . https://en.wikipedia.org/wiki/Roman_Catholic_Diocese_of_Killaloe . . .
The picture you attach . . .is from the register of Births . . 1846 . . Jun. . . .of ROSCREA . . the Town . . in the Diocese of Killaloe . .
This Diocese spreads over many many Counties . . . as you will see . . in the above Wikipedia article . .
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I searched for this Birth . . on another search engine . . i.e. Roots ( paid) . . .see below . . .
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Below . . . the Marriage of Feehan Coughlin . . .13th.Feb.1820 . . . witness . . . Thos.Lowry and Wife . . .
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Next . . I searched for Johanna ( Bapt // Birth ) between 1841 - 1851 . . . 47 hits . . .
Only one . . . comes close . . . as follows . .
on 9th Jun. 1843 . . Bapt. of Johanna Maher . . . to . . John Maher ( Son of Michael ) . . and a diff. Mother . . MARY GANNON . .
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Search for Richard . . Bapt.. . . 1839 - 1849 . . . ??? Nothing . . .
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Hope some of the above is helpful . . . Best I could do . . .
Best of good luck with your continued hunt . . .
Cheers . . . Eamonn.