Stivison, Marian "Mert" (NEE: Hesskamp), of St. Charles, Missouri, died on Sunday, June 16, 2013 at the age of 85. Loving wife of the late Robert Stivison; beloved daughter of the late Arthur and Lucille Hesskamp; devoted mother of Rhonda (Richard) Pires and Rick (Deena) Schaffer; dear sister of Art (Dorothy) Hesskamp, Dennis (Barbara) Hesskamp, and Jon (Betty Ellen) Hesskamp. She is preceded in death by her sister Darleen Borgmeyer and her brother Robert Hesskamp. She was a proud and faithful member of Immanuel Lutheran Church. Memorials may be made to Susan G. Komen for the Cure or Immanuel Lutheran Church.