Why are you doing that and who for? Genuine question.

If it's for here then write whatever and as much as you want.

If it's for a mag they'll have an idea how much they'd want (ie enough to fit a little box, or a page worth)

If it's for yourself / family or something more serious then enough words to explain it all!

I'm thinking it could be interesting reading regardless. Plenty of us on here with both hidden and non hidden histories!

Si