I think I found your Carrie Karcz on this web site: http://genealogytrails.com/ill/winnebago/marriagesP.html
It shows that Caroline Karcz married John Pakanich in Winnebago County, IL on 7/22/1916. Her marriage record will probably tell you who her parents were and maybe where she was from. If you get that info, you can probably link her up with other Karcz's. I have several Karcz's in my tree in the Green Bay & Pulaski WI area.