The Maughold parish register has these burials:
Angus Henry GILLON 3 yrs. or GELLING (Roman Catholic) Ramsey 14 Sep 1896
Anastasia GILLON 16 mths or GELLING (Roman Catholic) Ramsey 29 Sep 1896

At those dates you can see the cause of death on LDS film, if you are not in the IOM. I transcribed BREW ones for the Brew website which you can look at to see the kind of information given, at: brew.clients.ch/DindexIOM.htm#Index
See at the bottom for transcripts.
For example:
12 Dec. 1878 at 10 Albert Row, Ramsey, John Brew aged 10, son of Philip Brew, tailor, scarlet fever malignant, Informant 'X' mark of Ann Brew mother [of the same address].

Sue