You have likely found your answers by now, but if not, Kenneth Timmerman's mother was Mabel Rose Timmerman (Hensel). Ernest Timmerman was his father. Mabel died 7 July 1929 at LaCrosse WI, shortly after Kenneth was born. Closest relations would be descendents of Mabel's sisters Luella Voshart (Hensel) or Marie Walther (Hensel). If you're still stuck, let me know.