These seem to be Jewish surnames. There are less than 100 Gimpels in Poland but none in the Zamość or Lublin areas. There is a single person named Kastell (with 2 Ls), but no-one using the Zypman spelling. Could it have been Schiffman/Szyfman?
It could well be Szyfman. I cant seem to find any information about these names.
Is there a way of finding out the addresses Kastell and Gimpel.
Also how can I get a copy birth or death certificate of my grandparents If there is one. I have tried JewishGen name search but need more info to connect the names.