You will see from my family trees on this website that it is with researching the Norden family that I have made the most progress. I am aware of four non-Scandinavian originating Norden families. One of these was wealthy and successful. Based in Amsterdam during the 18th century, some of its members came to London. Another, which was probably connected, was based in the Hamburg/Altona area. Another was living in East Anglia from at least the early C19th. My Norden family was in London by the 1790's and would appear to have been neither rich nor successful. In fact one or two members later overcame this handicap but they were the exceptions! So far I have not found a link between my London Nordens and the three other families.
Sarah Norden my Great Grandmother who married Julius Heimann
RESEARCH TECHNIQUES & RESOURCES
Thanks to Focus, Shemot, the South Africa SIG of Jewishgen and Shalshelet, publishers of the original articles