Of course, there would be three, all with father William:
[IGI]
MATTHIAS CAIN Christening: 10 FEB 1765 Onchan Father: WM CAIN

MATTHIAS CAIN Christening: 17 MAR 1765 Onchan Father: WILLIAM CAIN, Mother: ALICE CHRISTIAN

Would you believe on the same day? (but in Marown)
MATTHIAS CAINE Christening: 17 MAR 1765 Marown Father: WM CAINE, Mother: MARGT KELLY

Sue