I have been trying to find info on the Dzialdowski/ Cummings family. I have found Jakob Dzialdowski his son Wojiciech Dzialdowski 1856 - 1908, his son John Dzialdowski 1882-1937 and his son my grandfather John E Cummings (Dzialdowski. There was a name change at some time to Cummings from Dzialdowski.
John E Cummings wife is Florence Marshall
John Dzialdowski wife is Elizabeth Schedamann (Dzialdowski, Cummings, or Mcnamara)
Wojciech Dzialdowski married a Mary Krayenki
I think they come from Poland and then resided in New Jersey