I have just been looking at Overall baptisms and there appears to be 2 families headed by John & Sarah Overall who were baptising children in Bermondsey.
I was just transcribing them assuming they were yours when I noticed that 2 of the actual birthdates were only 4mths apart in 1848.
A John & Sarah Overall baptised the following children all on the same date - 25.7.1860 at Bermondsey St Mary Magdalene. That John was a matmaker and address was Brunswick Court
Sarah b 22.4.1848
Fanny b 1.12.1851
Louisa b 20.7.1853
On 13.7.1856 a John & Sarah Overall baptised 2 children at Christ Church Bermondsey. Address 25 Parish St Horsleydown and occ Fellowship porter
Ann Elizabeth b 18.6.1850
William b 18.8.1848
Is the family in bold in your quote above the 1841 census find you discovered, and the other family mentioned in your quote the family related to me?
As you have said they can't be the same family, but the Fellowship porter one is definitely mine by the looks of it.
Did you get Sarah's maiden name from one of their childrens birth certs? There is an 1849 marriage to a Sarah Standerwick - both were unmarried previously
What are the details of this marriage? Are there any clues towards the families?
I think i chose the Butcher as the line to follow because there was, (possibly coincidently) a Sarah Butcher record...
Name: Sar Butcher
Gender: Female
Christening Date: 26 Jul 1820
Christening Place: FOLKESTONE,KENT,ENGLAND
Father's Name: Hen Butcher
Mother's Name: Sar