What US records have you collected on this ancestor?
Was she born in Dolnoslaskie wojewodztwo?
Map of Poland's wojewodztwos:http://www.geneteka.genealodzy.pl/
You have her place of birth? You know religion of your ancestor?
9:22 a.m. March 19, 2017
URBANIAK surname holders in Poland in 2002http://www.moikrewni.pl/mapa/kompletny/urbaniak.htmlhttps://www.radixindex.com/en/surnames/surname/urbaniak
Is URBANIAK a married or maiden name of your ancestor?
The Stella URBANIAK in above census has Posen for a location. http://poznan-project.psnc.pl/
Location Poznan [Posen old German name] is in Wielkopolskie wojewodztwo.
Would be helpful if you provide some information about your ancestor.