I think that Eliezer Koffler (late 1700s) and his sons Joseph and Eliezer came from Roznow, Poland.
Mechel Schechter (who came from Wizenitz, Poland) and Miriam Koffler (who came from Roznow, Poland) had six children: Gertrude Schechter Weiselman, Rachel Schechter Hornstein, Rose Schechter Thau, Pearl Schechter Reiter, Abraham Schechter, and Anna Schechter Rasp.
The page not migrated to this site is: Koffler and Schechter records and photos