I found no Alice Kermodes in the 1881 census of England.
You may be aware that the IGI has an Alice Maude Kermode, christened on February 2, 1861 in Lonan, daughter of William & Elizabeth.
However, in the 1881 IOM census the 27 year-old Allan Gorry and the 10 year-old Alice Maude appear on the same PRO Reference RG11/5597 on folios 91 and 70 respectively.
When Catherine was born in 1886/87, this Alice and Robert would have been 16 and 33 respectively.
As there are so few Alice Maudes, one possibility is that, once in England, they decided to bring their ages closer, by his losing two years and her gaining four.