So far we seem to have:
1901 census: RG13/2462/92/10
27 Columbia St, Cheltenham
Ernest Jno. OLIVER Head M 23 Labourer, Corporation Gloucestersh. Cheltenham
Elizabeth do Wife M 25 Devonshire Plymouth (nee Bignold)
Florance May do Daur 3 Devonshire Plymouth (nee Bignold)
Vera Kathn. do Daur 3mo Gloucestersh. Cheltenham
And in 1911
EJO 33
EO 36
Kate 10 b.Cheltenham
Louisa 5 b. Cheltenham
So it looks like Ernest (or someone else) and Elizabeth had Florence out of wedlock. Elizabeth moved to Cheltn. having married and had Vera.
By 1911 both Florence and Vera seem to have died.
But Kate and Louisa had been born.
My wife also remembers an Aunty Hilda (and I've met Aunty Pat!) so they and Ernest were born between 1911 and 1916
Not upto 13 yet - but the numbers are rising!

Certainly there are gaps between Kate and Louisa, and between 1911-16. Twins run in the family so 13 is not an impossible number to contemplate.
Fascinating stuff! Well, for me anyway!
