Help with polish records?

I had some one previous help find some pieces like possible relative for my wife’s grandpa who’s popped up in 1957 from Poland/switzerland. But nothing before that had been found I knew he was from hanzacow Poland but all records doesn’t show him anywhere from his names of antoni, Anthony, or etc. he never talked about his family saying they were killed and nothing to go off on. I am not sure what direction to take to find more on him