My grandfather, Solomon Scheur Zalman Krivchenko, was born 15 Nov 1876. >from documents found one of the possible birthplaces is Voronezh, Russia. I recently found a number of victims listed on Yad Vashem with the surname Krivchenko >from Voronezh. Actually this is the only Krivchenkos I have found on Yad Vashem. Makes me think they could be related and that I might have found my grandfather's birth town. I have no idea how I might find birth or other records >from Voronezh? Any suggestions? Thank you.