John Michael Heidenreich, passed away unexpectedly at home on March 30, 2020 in Mt. Vernon, Illinois. Born at Good Samaritan Hospital in Mt. Vernon on October 27, 1943, he was the son of George and Ann (Adzima) Heidenreich. Internment will be held at St. Mary’s Cemetery in Mt. Vernon and a Memorial Service will be held at a later date. Call Hughey Funeral Home at 618-242-3348 or visit hugheyfh.com for further information.