I wonder if the middle initial was for Callow, Kevin.

This looks like a good possibility for the baptism of the Mary Corkill who married William Callow, tailor on 11 Sept 1837 Maughold.

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MARY CORKILL Pedigree
Female

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Event(s):
Birth:
Christening: 11 MAR 1810 Maughold, Isle Of Man, England

Death:
Burial:

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Parents:
Father: THOS CORKILL Family
Mother: MARGARET FARGHER

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Messages:
Extracted birth or christening record for the locality listed in the record. The source records are usually arranged chronologically by the birth or christening date.

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Marriage of Mary's parents:

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MARGARET FARGHER Pedigree
Female Family

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Event(s):
Birth:
Christening:
Death:
Burial:

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Marriages:
Spouse: THOMAS CORKILL Family
Marriage: 10 DEC 1799 Andreas, Isle Of Man, England

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Messages:
Extracted marriage record for locality listed in the record. The source records are usually arranged chronologically by the marriage date.

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This is the only burial which might fit for Margaret Corkill nee Fargher between 1851 and 1861:

CORKILL, Margaret 88 Maughold 27 Sep 1859

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CORKILL, Thomas 92 Maughold 26 Dec 1869

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Jean C