Hi Janice,
It can be near on impossible to be 100% sure you have the correct person in these times of pre census and pre civil registration. Often the best we can hope for is a "most likely"
I don't know anything about Irish parish records - does the marriage or the death help at all with parentage?
Best bet is to try to track the family you feel is Sarah's.
Look for things such as -
Is there a burial or a marriage for Sarah around Crewkerne which may tell you this is not the correct person.
Did the family remain around Crewkerne (Do any of them also appear in Ireland, she is quite young at marriage)
Did her father leave a will
Were these family names used in Sarah's children as a possible clue
Cheers Kris
