RootsChat.Com

This is what Andi has said -

 have traced Zachariah on Ancesty (a family tree website that I subscribe to), which has really good records for London births, deaths and marriages, which I have cross-checked with Census data  to verify a lot of the family connections for people alive after 1841. 
Not sure if you know, but there is also a free website set up by the Mormons which contains church records (baptism, marriage, death). I don't know the www. address -  I always look up Latter Day Saints in Google to find it.
 
From these I have traced Zachariah's line back to the mid 1700's in London.  His grandfather John married Mary Lambourne in London in 1752 and his father John married Ruth Valentine in 1787.  They were all married in Churches, so I'm not too sure about any Jewish connections.
 
The Jemima probably came from Jemima Jones who was Zachariah's daughter in law.  She was born in Salisbury, but with the name Jones I can't get further back than her parents!

Well there we go how fascinating... I will try and send you a family tree...but don't have a fax machine here in UK as at the moment - am living and working in Athens...Ruth Valentine...that explains a lot as Zechariah Cornelius are Jewish names and I imagine that Ruth chose them as she was prob an Ashkenazi Jewish immigrant..six degrees of separation as they say...my uncle is the guru on all of this born Foulser he changed his name by deed poll to Freeman as he found in the business world no one could spell it. I was brought up in my grandfather's house Arthur Samuel Foulser who was an amazing guy. Will see what I can find and send it to you.

Hi I am directly related to this guy who lived in the East End of London I think...he must be my GGGG grand father...my grandfather was Arthur Samuel Foulser and I know we came from a family closely connected to the sea..