There are public trees on Ancestry which shows the Catherine who died in 1887 as being nee Morgan, born in Cheshire. This is the link to the 1881 census entry for that Catherine:
https://www.ancestry.co.uk/interacti...28453598/facts
They also give burial details - 11 Aug 1887 at Neston, which is where she is on the 1881 census.
So not your Catherine.