Hellow Terry, I'm trying to build my family root. In my search, I have learned that my great grandfather (father of my grandmother),was Chaim Zwirn who livedin Poland (today Ukraine)in a place called Nadworna (near the townStanislavuv (today Ivano Franckovsk). One of his sons was Nissim (?) Koppel Zwirn who lived in 6 Halizka st. in Stanislavuv, and probably immigrated to the USA in 1923. Another name that came out is :Fula (or Paula)Zwirn, born in 1865 in Nadworna, she had 3 children :Reisel,Simme (?) Witttel , JOSEF CHAIM . The parents of Fula were Gershon and Rebeka and her husband was Mendel Leib. If this is somehow iluminates anything in your roots, please let me know.