Sonia Stalzer, 89 of Forest Park, passed away May 25, 2018. Dear sister of Angelina (the late Miro) Petani and the late Fridi (the late Zora) Stalzer; proud aunt of Lorena (Pedro Zapata) Petani, Paul (Sandra) Petani and Noemi Stalzer; fond great-aunt of Ira Stalzer, Nicolas Petani, Maximiliano Petani and Lucio Zapata. A private service will be held at Woodlawn Funeral Home and Memorial Park.