Hi,
Eliza Creer daughter of Thomas Creer and Elizabeth Fayle chr 1807 in Marown married Robert Corlett in 1835 in Marown. We know this from her father's will. Thomas Creer died 1842 in Jurby and his will of that year names Eliza's husband as Robert Corlett.
We can be confident that the Eliza Creer who married John Cain in 1836 in Braddan was the daughter of Daniel Creer and Catherine Wade as the burial record for Eliza Cain alias Creer of 11th May 1902 in Patrick gives her age as 89, ie born 1812/3 - and Eliza Creer daughter of Daniel, chr 6 Sep 1812, was the only Eliza Creer born in Braddan 1809-1815
I hope this helps clarify things,
cheers
John