Your assistance – the efficient gathering, illuminating presentation and skilled
analysis of the data in your Ph.D. thesis – made an invaluable contribution to my efforts to trace  my family roots in late 17thC and 18thC Piotrkow. It not only saved me endless hours of fruitless searching, it brought to light vital information that I would otherwise never have discovered. Judging by my own
experience, I have no doubt that anyone availing themselves of the services offered by your website will benefit greatly.

Professor Peter Medding

Hebrew University of Jerusalem
Jerusalem, Israel