Searching for a David TZCHEMERINSKY who have been the Rabbi of the city of Novarodok, during the 17-18th centuries. The above Rabbi is mentioned in several sources but without a family name. He wrote a "Sefer" (book) called "Galia Mesechta" (or Masechet).
Many years ago I was contacted by an AGOLNICK family who said they were descendants of the above but over the years I have lost contact with them.