My step-mother's grandfather was Zelick Rosenbaum. He immigrated from Poland or Russia before 1910 and settled in Denver, Colorado.

According to some family members, he was from Ostrova in Poland. But on the 1910, 1920, 1930 census, he says he was from Russia. I am unfamiliar with Poland, and haven't been able to find a town by that name in Poland on Google maps. However there are several Ostrovas in Russia and an Ostrava in the Czech Republic, near the border with Poland.

Could there have been an Ostrova in Poland that got destroyed during the Wars?

Thanks!

- Heather