I have not come across any Ignacy Krolikowski so far in my research. My ancestors are from the town of Lubicz near Torun in the Roman Catholic parish of Dobrzejewice. I checked the town of Podborz at www.jewishgen.org/ShtetlSeeker/. There are several towns in Poland but they are not in the same vicinty of Lubicz.

Depending on when your grandparents arrived, you may be able to find them in a passenger's manifest on line at Ellis Island. It took awhile to find my grandparents because of the misspelling but the manifest included a lot of valable information.