I am researching the following surnames from the town of Obertyn, oblast Ivano-Frankivs'ka: Bachminski, Baraniecki, Chrustowski, Gawlinski, Holynski, Holinski, Jaworski, Kilar, Krug, Matkowski, Obelnicki, Ornatowski, Ostropolski, Rzewniowski, Szymanowski, Zarski, Zurawski, Zubowski. Any information that you are willing to share with me would be greatly appreciated. I also have data that may be helpful in your research. Please contact me.