Yes, I do know that. Thanks for your reply.
What I am trying to confirm was when William entered the US and did he go back to CZ?
He only shows on the 1895 and 1896 directories. I can't find him on a passenger list as entering the US.
I know that his four children (listed in my previous post) including my grandmother Rose Sedlacek all came over to the US during the 1890's.