I am trying to trace the genealogy of one or more people with the surname "Wozniack."
I believe that it is Polish name and that these people are of Polish descent
Where in Poland are people with this surname likely to be found/come from?
If I took a field trip over to Poland, what resources might be available there for tracing them that would not be available to me now (sitting at a desk, working online, in the U.S.)?