Just following up on my original inquiry of several years ago.
Lilian Sharman died in 1952 in Upton-on-Severn in Worcestershire, her place of abode was given as Malvern Link. She was on the 1939 register in Malvern Link so lived there for a long time. I still don't know what happened to her in the years in between, but I was happy to see that her husband's name and occupation was written on her death certificate. I'd been told by family that she remarried and didn't want to know her children, but the fact that his details were on that certificate, even though he had died 50 years before, makes me believe she did love her family.
I also went to Etaples, in France 3 years ago and visited her son Edgar Sharman's grave, which was a wonderful experience.