Genealogy / Moczulski/Chrobak family tree. [6]

Would anyone know of the wheereabouts of the towns Rodatycze and Czarnoroncy Poland but know in the Ukraine. I'm trying to find any Moczulski's or Chrobaks in the Krakow/Cracow area and or Warsaw with our last name. I'm planning a month long trip to Poland in the fall of 2010 but if I don't find these towns or any so-called relatives, I might have to cancel my plans. There must be these families somewhere in Poland or Ukraine. contact me if you know of anyone with these last names or where the towns are that I'm looking for.

Thanks from Ontario Canada.;
\ J.Moczulski