Hi, have you tried looking at the mormon website www.familysearch.org to see what or if there are churchbooks available for Gruenwald,Silesia? If you know your Grandmother's name, and approximate her birth year, maybe ca 1900, you would order the film that covers those years and see if your Grandmother's baptism is listed, that would give you another generation back from there. I am pretty sure the baptisms for 1924 are on film , just not sure if it is for Grunwald. Also important is to know whether catholic or protestant(evangelisch. Sometimes on the baptism entry into the churchbook, there will be notations on the second page, that could give the name of the father of the illegitemate child. good luck in your search,Eleonore