The birth location isn't really known. I just used the last residence as listed on the ship manifest for the Kronprinz Wilhelm out of Bremen, Germany which arrived in NYC on 29 Apr 1913. Karel was a tailor of 18 yrs on his way to a friend (James Cibulka of 2449 Ridgeway) in Chicago, Illinois. Father was listed as Frank Rozhon (hacek over the 'n')