I only put one book in my original post, but remember so many that have now been mentioned.
I still have my copy of Black Beauty and Heidi in the bookcase, with colouring by me aged 7!
Zoejory your mention of Struwwelpeter, a truly horrific tale with equally horrific drawings reminded me that I found it hidden on the top shelf of my Mum’s wardrobe. I think my Swiss Godmother had given it to me as a ?9th birthday present and Mum, very sensibly, hid it away. Having googled it again now, I can see exactly why! I was never given it officially and could never let on I had seen it. I wonder if it was given to me as I used to bite my nails!
MaxiBialystock and DanniRae you jogged my memory about Jalna and Whiteoaks! I loved that series, I used to have the complete set, but long gone to a charity shop. I think Rennie was father, but probably wrong.