Just checked and it was not Gilbert Kewley, father of Mary b 1719 Lonan. The father was Gilbert Carran/Karran. The alias's on the mother's names definitely reversed, as I suspected.

Burial: KARRAN, Gilbert Lonan 15 May 1743 (Brian's index)

From Manx Notebook Lonan:
1744-1 E d KARRAN Gilbert [bur Lon 17430515]marr contct dated 14 jan 1717/8 margt skillicorn als kewley (lonan)+ gilbert karran(marown);mentions aigness tenement;1744:ch thomas ,jane + jon(ua)

The daughter Mary bp 2 Aug 1719 likely is the Mary Karran buried 28 May 1725 Lonan.

I actually had this family from an earlier project, but indexed Karran, not Carran, so I missed it yesterday and didn't recognize it. Margaret Kewley's first husband was Thomas Skillicorn, d 1717. Margaret was d/o James Kewley (d 1706) & Margaret Quine of Lonan.