Sorry for the delay in responding David. There is a possiblity of a relationship. My Great Great grandfather was Stephen Ivanko and he was also from from Austria (Galacia). He would have been about the same age as Thecla. I am wondering if perhaps he was a brother or perhaps a cousin. According to notes I took about 30 years ago from my grandmother (Stephen's daughterinlaw), Stephen's father's name was Leva Evanko, however perhaps an English translation would be Stephen. What do you think?
Colleen