My uncle DZIEWIĄTEK settled in USA about 100 years ago, known later as DZIEWIATEK or DWIATEK. I had been searching his surname in the federal censuses, but it all failed. Some time after the well known webpage I was using for the research, gave me a tip that he may be written as DZIEWISTAH. Indeed, this name was read from an image, however I could read there DZIEWIATEK not DZIEWISTAH. Sometimes a genealogical roadblock comes from the recent past (a volunteer who seen an image and typed a surname into computer database), so it does not come from real source. Of course, I am happy that I was still able to find what I was looking for

Regards from Poland,
Maciej