Thanks, yes their daughters, Maria, Hannah and Eliza were living in Wilsted Street in the 1841 census.
I found the marriage you mentioned about Lambert Herbert, but never found a marriage for him to Emma. I have also never found a baptism for Emma Green, in Frome Somerset, and even got the churches in Frome to check their records, without success. At one stage I suspected that Emma was 'from Somers Town' at St Pancras, rather that 'Frome Somerset'. If James Green was a witness then this would sort of comply with that theory.
James Barrell was an Ostler at St Pancras. I am sure I found a possible marriage for a James Barrell after 1841, which makes me wonder if Emma and James did divorce or become bigamists.
The date of birth you have for that James Barrell would match for the marriage in 1813.
At the 'Who do you think you are' family history show last year it was mentioned that 'Barrell' was a Suffolk surname. Until I can find a death for him, I can't establish an age for him.
This is a brick wall I would very much like to resolve. James and Emma are both a very big mstery excepct I do have Emmas death certificate from 1867. Shedied in St Pancras in the presence of my Gt Gt Gt Grandmother, Eliza CollinsBarrell