Memorials may be made to American Diabetes Association or American Heart Association. Tiedemann, Dave, of O' Fallon, Missouri, died on Wednesday, January 27, 2010 at the age of 69. Devoted son of the late Clyde Raymond Tiedemann and Lucille Amelia Tiedemann; dear fiancé of Caralee Richterkessing; treasured brother of June Mae Schaffer; cherished uncle of Michael, Danny and Sandy. He was employed as a Groundsman at Parkway School District in St. Louis, Missouri and enjoyed repairing old TV's and radios.