Does anyone have any information on this Ellison family from Liverpool?

James Ellison married Catherine Carey 28 Dec 1898 in Liverpool. i know that they had at least two children; James (1900, Liverpool) and Elizabeth Genevieve (1902, liverpool)as i have found them on the 1911 census (but not paid to see the full info!!)

I also know that Catherine had two children Francis (1889?, Liverpool) and Joseph (abt 1893, Liverpool)before she married James.

From talking with a lady who remembers the family on another forum i believe there were more children (6 in total??) and that the family had alot of misfortune in the early deaths of the children/ young adults (Jimmy drowned, Mary fell from a window 3 storeys up and a potential story about another boy). In total other names that i have are Mary, Sandra and Eddie (died 1995?) but i'm really not sure if the generations are correct or if Eddie and Sandra are the grandchildren of James and Catherine. i've tried to trace them but no joy so far on BMD

I'm related to Catherine but i'm interested in what happened to the family as at one point they were all very close.
Anything anyone could tell me would be wonderful

Thanks in advance