Hoping to get help me with my Ruzicka family ancestors. My grandfather was Frantisek Ruzicka born Sept 1890 in Austria. He came to the US in the early 1900's. His parents are Jan Ruzicka and Marie roz.Skridlova. I do not know more than that other than he changed his last name to Miller. Any help or information is greatly appreciated!

Thank you,

Anna