Kathryn M. Tannert 89 of Mukwonago, WI formally of Elm Grove, passed away April 25,2020. Predeceased by her husband Thomas P. L. Tannert. Survived by her daughter Lisa; son Shay; and many dear friends. A memorial will be held at a future date. In lieu of flowers, memorials may be made to the Wildlife in Need Center, Oconomowoc, WI.