Donna Mae L. Diefenthaler, 84, of Kiel formerly of New Holstein, passed away Saturday, March 31, 2018, at Willowdale Nursing & Rehabilitation Center in New Holstein. Donna Rach was born February 17, 1934, in Kiel to Hugo & Minnie (Nadler) Rach. She attended school in Kiel and graduated from Kiel High School in 1952. On August 17, 1957, she married Ralph Diefenthaler at Saints Peter & Paul Catholic Church in Kiel. They celebrated their 60th wedding anniversary this past August. Donna had worked at Roeck's Bakery in Kiel and Delta Publications. She was a member of Holy Rosary Catholic Church in New Holstein and the Daughters of Isabella. Donna is survived by her husband, Ralph; four children, Pat (Ron) Diermeier of Neenah, Linda (Tom) Lefeber of Howards Grove, Sandra (Mark) Allmann of New Holstein, and Dennis (Sheila) Diefenthaler of Kiel; eight grandchildren, Angie (Justin) Spencer, Tony (Britney) Diermeier, Eric (Ashley) Lefeber, Rachael (David) Zigterman, Jason (Melissa) Mathes, Alyssa (Keith) Suttner, Derek Diefenthaler, and Erin Diefenthaler; two step-grandchildren, Tasha (Chad) Paquette and Devan (Mariah) Hefter; 11 great-grandchildren; her brothers & sisters, Arlene (Harold) Schuessler, Ronald Rach, Marjorie Sass, Rosemary (Ambrose) Stephanie, Marvin (Chris) Rach, and Gerald Rach; her brother-in-law, Cliff (Pam) Diefenthaler. She is further survived by nieces; nephews; other relatives; and friends. Preceding Donna in death were her parents, Hugo & Minnie Rach; a great-granddaughter; her sister, Bernice (Ernie) Kohlmann; her brother, Charles Rach; her father-in-law & mother-in-law, Harold & Althea Diefenthaler; two sisters-in-law, Delores Rach and Yvonne Rach. A Liturgy of Christian Burial will be held at 12:30 PM on Wednesday, April 4, 2018, at Holy Rosary Catholic Church, 1724 Madison Street, New Holstein, WI 53061. Following the Mass, Donna will be laid to rest in the Holy Rosary Catholic Cemetery. Visitation: Family and friends may call at the Sippel Funeral Home, 2618 Altona Avenue, New Holstein on Wednesday, April 4th from 9:00 AM until 11:45 AM when brief family rites will be held. For additional details, please contact the Sippel Funeral Home in New Holstein (920) 898-4300 or visit www.sippelfuneralhome.net.