Hi Nicola, Have only just seen your post. My name is Chris - my Mother was HILDA ETHEL CAKEBREAD. She was your granddad's sister and he was my Uncle. The 10 children you name are my cousins, including your Mum! Brian lived with my parents from quite a young age until he married. Cynthia went to live with my Mother's sister, my Aunt Doll.
Be happy to discuss if you would like more information or want to contact me.
Regards
Chris