In response to Ann Rabinowitz's comment,In some cases, prisoners may have been
buried in an unmarked or pauper's grave. According to my conversation with Mt.
Carmel Cemetery, even if graves are unmarked, for whatever reason, records
related to the buried individual would still have to have been processed & should
be available in their database. So, in the case of my cousin's grandfather,
Hyman/Hymie/Herman OSTRANSKY, his information would have to be in the cemetery's
records---even if no one has found them---yet!