I'm still looking for Ellen's death. On Freebmd the possibilities if the age is correct are:
Mar 1941 Epping if she died before Mary
Dec '43 Sittingbourne (Kent)?; June '46 Ipswich; March '51 Wellington. Are any of these places near Christchurch in the south? I found three Christchurches - and guess the one where they lived was near Bournemouth.
Oh Sigh Carol