Marilyn I. Lefeber, age 67, of Mount Calvary died unexpectedly Thursday evening, May 26, 2011, at St. Agnes Hospital in Fond du Lac, surrounded by her family. The former Marilyn Schmuhl was born February 29, 1944 in Fond du Lac. On November 30, 1963, she married Donald J. Lefeber at St. Louis Catholic Church in Fond du Lac. She was a member of St. Isidore Parish Holy Cross Church in Mount Calvary, the Christian Women's Society and belonged to the church choir. Survivors include her husband, Donald, of Mount Calvary; her three children, Michelle (Russell) Anderson of Mount Calvary, Ann Lefeber of Fond du Lac and Steven Lefeber and his special friend, Cathy Young of Oshkosh; four grandchildren, Amber, Kayse, and Alexis Anderson and Terriana Lefeber; her mother, Louise Schmuhl of Fort Meyers Fl; her sister, Beverly (Doug) Williams of Bay Minnette, AL; her close friend, Connie Loewe of Stockbridge, and further survived by her husband's family members. Preceding her in death were her father, John Schmuhl and a granddaughter, Robann. Family and friends may call at St. Isidore Parish Holy Cross Church 308 County Road W in Mount Calvary on Tuesday, May 31, 2011 from 3:00 – 6:00 PM with a Mass of Christian Burial to follow. Entombment will be in the Shrine of Rest Chapel Mausoleum at Ledgeview Cemetery in Fond du Lac. For additional information, please call the Sippel Funeral Home in St. Cloud (920) 999-2291 or visit www.sippelfuneralhome.net