My dad, Dick (Richard) Guckenberg, was adopted into the Guckenberg family when he was about a year old. His father Frank Guckenberg (Cadott, WI) and mother Florence adopted him and changed his name to Richard from Steven. My fathers birth mother also had another child - a daughter. I am trying to help him find her. She is his whole sister. He has already found his other family all consisting of half-siblings. She may not even be aware of her large family trying to find her. I can get more details to anyone if they think they can help.