In terms of tracing Abraham back further, have you traced his marriage to Louisa? She was born in London so with any luck they will have married in England. Do you have her maiden name (from e.g. the birth certificate of Moss or one of his siblings)?NB I see that they already had baby Benjamin before the 1841 census so they may or may not have married during the period covered by civil registration (1 Jul 1837 onwards).His likely birth: Benjamin Abraham BENJAMIN, Jun qtr 1840 Whitechapel 2 506.
You might have already come across these, but just in case - when I found a surprise Jewish branch in my family JCR_UK http://www.jewishgen.org/JCR-UK/ and JGSGB http://www.jgsgb.org.uk/ really useful!
I think you may have a different Abraham as I don't have a Benjamin listed on my children? I have Abraham b.1813 m. Louisa
I think you may have a different Abraham as I don't have a Benjamin listed on my children? I have Abraham b.1813 m. LouisaChildrenJaneRosettaPhilipMossIsaacSolomon?