Hi Rose . . .
Welcome to Ireland Reaching Out . . . and lets see if we can be of SOME help to you . . .
Given . . what limited info. you have I first searched ALL the usual . . search engines . . i.e. Ancestry . . Roots (paid) . . . etc
I was not getting back any worthwhile on a Thos.Butler . . being born 1863 . . somewhere in the mid-tipperary area (see map belw)
Holy Cross (as mentioned) is a few miles from the major town in that area - Thurles.
I found it unusual not to come up with a Church record for Thomas . . . as all Parish records are on line . . .
next I focused on . . his Mother . . wih a slightly unusual Irish name of " Perkins " . . .
again I found NO record of their (Michael + Mary) wedding . . circa 1860 +/- 10 yrs.
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When I searched for a Mary Perkins . . . being born approx. . . . 1840 +/- 5 yrs . . . in Tipperary County
I came up with 4 Mary's . . . arround that time . . .
The first Mary (1839) . . . is being registered in Templemore . . Ch.of Ireland (Prod) . . daughter of a Soldier ( there had been a British army barracks in T'more)
The other Mary's . . are being registered in Upperchurch R.C. Church . . 1835 and 1843 . . .
and there is a further Mary ( in Upperchurch in 1849) . . .
All there locations are within reasonable distance to a Holy Cross . . .
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Next I searched . . " Griffiths Valuation " (1848 -1864 ) a Tax Roll from that era . . . for property owners . . with the name Michael Butler . .
1) Michael Butler . . . Tinvoher, Loughmoe West . . . near Templemore
2) Michael Butler . . . Dromardbeg . . near Templemore . . .
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SO Rose . . . not sure if any of the above . . . is of any help to you . . . your THOMAS is elusive !!
Cheers . . E.M.H.