I was so very sorry to read the sad news about ggg's little dd. I don't know her but I would like to extend my deepest sympathy to ggg abd her dh and family, and to all parents who have lost a child.
I experienced the loss of a sibling when I was in my teens and I wish there had been something like the compassionate friends back then.
They have a website www.tcf.org.uk and they also have local meetings and support for parents and for siblings. There is a phone line for people who are not comfortable with computers.
I hope this will be of some help to someone.