I've checked all local ph directories, and no families named Sudol and/or Mroz are still living in these places in 2008 Poland, supposedly all local Sudol's and Mroz's left homeland, and emigrated around 100 years to the new dreamland America. Happy to see their descendants are trying to preserve all family roots, and heritage.
Although, I must state family name SUDOL, as very rare in Poland, survived in other parts of the country - 1990 surname census confirms it:
== Nazwisko Ogolna liczba Rozmieszczenie SurnameTotallyLocation == Sudol: 29 Bs:1, BB:4, By:1, Go:6, Ka:2, Po:8, Tb:1, To:1, Wb:3, Wr:2 == Results: They were in 1990 Poland only 29 Poles surnamed Sudol, and mainly from the town of Poznan/area.
Mroz is very popular family name in Poland, meaning "a frost", which is hard to imagine how our Polish ancestors had lived with hard frost in Polish winter time -
I want to give you any symbolic gift for today, my dear friend, and here is the example of the Polish naive painting, by Polish local painter E. Brozek, I have at my home, and shared in my webgallery, enjoy the winter of our ancestors showed by local painter: