My gma was a Pieper. Her dad (my ggpa) was William Carl Pieper.They too lived in Davenport Iowa. My gmas name was Rose Pieper. They had a brother and a sister. I do know that Carl and my ggma divorced and went their seperate ways. I also believe that Carl basically forgot that he had a first family. We do know that Carl remarried and had another family. If you would like more info contact me.