it is a singleton entry in IGI but this entry would appear to be from 1911 transcript of parish records - though this source is generally good I have noticed that when transcription errors occur they are likely to be in non-Manx names.
Maria is a very non-Manx name (too Roman Catholic for the Manx !)
The name Kelsall occurs in Peel in 1890's but no similar name is in 1881 census

Ellis is also non Manx - occurs a few times but no significant family I can find - in Ballure MI is Sacred to the memory of John Ellis, formerly of Whitehaven, who died at Ramsey, 14 October 1859, aged 68 years. Of the few refs most seem to point to Ramsey.
In 1881 most are English