Hi Michael . .
Welcome to Ireland Reaching Out . . . and County Tipperary . . .
I am not local to Clonmel . . . rather way up in North Tipp. . . . but lets see if I can be of some assistance . . .
I began my search . . on " Roots " search engine (paid) . . . for Patr.Tobin b.Clonmel . . . date given ...1828.. . search +//- 5yrs.
Approx. 10 Michael's appear for ALL Tipperary . . . ONLY TWO . . .have CLONMEL addresses . . . but not 1828.
( See Below ) Patrick . . . born 1825 . . .
Patrick . . . born 1823 . . .
There are other hits for a Patrick . . . born in " Powerstown " . . . which is a district . . just N. of Clonmel . .
See Map . . below . . .
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Next I searched for a MARRIAGE . . between Patrick / Margaret Morrisey . . . circa 1855 . . +//- 10 yrs. in ALL Ireland . . . nothing. .
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Next . . a search for the BIRTH of a MICHAEL . . . in Clonmel . . . time line . . . 1805 . . + // - 10 yrs.
ONE only . . . Michael . . in Clonmel ( see below ) 1803 . . . ( see below )
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I searched a Census for Tipp. 1851 . . ( only scraps of info. ) . . . Nothing for Tobin // Morrisey
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There is no records of people EMIGRATING that far back . . .
Searching Ancestry . . .I found ( see below ) . . . a notice of a marriage . . . NO date . . .
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Best I could do . . .
Cheers . . . Eamonn.