In the meantime I found out that my Greatgrandmother's name is Ida Strunk and she was born in 1881 (so her sisters might have been born around that time) in Oberdreisbach, which is close to weitefeld or daaden in the area called westerwald. My great great grandmother's name is Carolin Pauline Strunk (born in 1855) married to Karl Strunk. So those are the parents also to the Strunk sisters I am trying to find. When checking the shipping lists or the data of ElliS Island I saw, that there werde many immigrants from the Daaden area going to Kenosha, Wi at that time. Maybe they went there as well.