Obituaries 1-29-2020: Margaret Koehnke News Progress Posted on January 29, 2020 by webmasterJanuary 29, 2020 Margaret Koehnke Margaret F. Koehnke, 94, of Sullivan, passed away at 6:30 a.m. Tuesday, January 21, 2020, in Mason Point in Sullivan. Login or Subscribe to read the rest of this story.