Have just started researching my family tree but my Great Grandmother on my mom's side was Magdalena Pieper who was born in Wausau, Wisconsin in approx. 1883. She died 12/11/1959 at age 76. Her father's name was Ludwig Pieper. I don't know if this is related or not but the areas were sure close to what you asked about.My Great Grandmother moved to Minneapolis in 1923. Let me know if any of this seems to fit.