I am looking for the names of my Grandfather’s siblings who remained in Poland after he left in 1912. His name was Jan Gebura, sometimes Gembura. I believe he had two brothers, Peter and Vincent. The name Antonina Gebura has emerged and we would love to know her relation to Jan. Did he have a sister? Their parents’ names were Nicholas and Victoria. Antonina may have been buried in Krynki. Thank you for any information you can provide.