I did my family's genealogy as far back as Russia. From there, I reached a road block.I can 't find any information from people who lived in Russia, i.e., birth, death, marriage certificates. I would like to find this information prior to the Rusian revolution. As for the names Wendrow,Vendrov, I haven't found any of those names in my research. I have social security and marriage certificates. Those names do not appear on any of these documents.