I read ur post with great interest. Since I am Chaim Lieb Zwirn, named for my grandfather from Nadworna in Austria, son of Pesach Zwirn who emigrated to the USA in 1896, I thought I should let U know that one of these days I will be posting more detailed info on the net to this group including some JPG images of documents relating to he & my mother(Chaia Ruchel Kreisler) from Stanislov. I happen to be 81 years old now and tho't U'd like to get some of this info first hand while I still can.
BTW, U have a relative in Jerusalem named Ben Zion Schaffer (Schaffa?)if still alive. Was from my mothers side and had a dry cleaning establishment in Jerusalem. My sister Sophie (Shaindel) visited him about 20 years ago. I'll be in touch. Cheers-Herbert Zwirn