All I know is she went to Germany with her kids.
Before, during or after the war? Before the war and the family might have been on the so-called Optantenliste of 1920/2 (a list of people wanting to leave Poland for Germany, and vice versa). During the war and she might have been a slave laborer who was considered "racially valuable" (Category IV of the Volksliste). After the war and she was probably expelled by the Poles because she had been on the Volksliste.