I believe that Terry may be a cousin to my husband, David Radtke. His Grandparents were Wayne Harold Radtke and Gladys Flourence Schwarm who were from Sandburn, MN. Wayne Radtke's parents were John Fred Radtke and Amelia Gumto. I believe that Della was Wayne's sister and lived on a farm outside of Morris, MN. She was married to Ted Polaski.