Donna has kindly looked up MIs in Braddan for those other burial dates I suggested, all in Braddan:
Philip Cain aged 80, buried Sept 18 1877
Catherine Cain 73 buried 26 Nov.1885
Catherine Cain 78 buried 13 Apr 1886
And no luck - no MI.
I think the above one is likely to be Philip's burial, because he was in the 1871 census and living in Braddan, b.Braddan. And the first Cath Cain, above, matches her age in most records, and her bapt in 1812 if b. Braddan, which also matches most records.