I think you have a lovely idea for your mum's 70th birthday - we did something similar when I was a child for my grandparents' golden wedding and they loved it.
Do you know where your mother was born and grew up?
If so you could surf the Internet and see if you can find photos of the street she lived in as a child showing it as it looked then, or the school she first went to. That should cover the first ten years.
The years from 1947 when she was 10, if my subtraction is correct until 1957 could be covered by one of the musical hits of the time. I'm madly trying to remember what we listened to then, but being from 1951 myself, I can only come up with the last few years, but I do remember my mother was daft about songs like "In your Easter bonnet" anything to do with Fred Astaire and Ginger Roberts really.
Granddaughter delaying period, advice please
Offer of cash - what would you do?

