All I know for sure is that my grandad on my mums side was called Nelson Stevens, and he married Christine Booty. I am told he has (a few?) brothers (none of which I've met), one apparently called Leslie(sp) who has/had a boxing club.
Some quotes from my aunt: 'His side of the family had money from working hard doing whatever they could to make a living, From growing and selling Christmas trees to scrap metal and boxing.' Also: 'All the boys have to learn how to box as soon as they start walking. Most of them keep up with it into their adult life. Your Grandad did not box in his adult life unlike his brothers.'
My mum herself has plenty of siblings too.
From my extremely basic searching, I *think* Nelsons Mums name was Ellen Rosina Stone, and possibly his father called Sidney/Sydney Stevens, both of whom were born in Devon. I could have this completely wrong for all I know though.
EDIT: As per the above, his mothers maiden name could also be Musty or Dowe. I actually think this may be more likely, as the birth year ties a little better, and is still in Bristol.
As I said, all I know for sure is my grandparents names and that I've been told my grandad is from 'a Romany gypsy family'. It's so hard finding information when you know so little to start with!