Lorraine “Sis Stiller” Halder, age 85, of Winneconne, WI, passed away at ThedaCare Medical Center in Neenah, on Wednesday, October 14, 2026. Lorraine was born at home on the family farm in Poygan on January 11, 1941, daughter of the late Raymond and Evelyn (Pohlman) Stiller. She graduated from Omro High School and later worked as a school bus driver for 25 years. Lorraine married Donald Halder on August 15, 1959, at the Omro Lutheran Church. They shared 67 years together.

Lorraine cherished her family, especially her grandchildren. She enjoyed gardening, fishing, canning, and yardwork. Lorraine had a love for horses throughout her life.

Lorraine is survived by her husband, Don Halder; children, Lori (Gary) Doehling, Nancy (Chuck) Marine, Nellie (Mike) Mathison, and Lee Halder; grandchildren, Justin (Liz) Doehling, Austin Doehling, Coltin Doehling, Travis Marine, Joe Marine, Nikki (Kevin) Janiszeski, Matt (Vanessa) Mathison, and Dylan Halder; great-grandchildren, Makia Marine, Sophia and Grayson Doehling, Everly and Arlo Janiszeski, Hailey, Scarlett, and Gage Mathison; siblings, Bill (Carol) Stiller, Chuck (Jill) Stiller, Ardyce Schiefelbein, and Cheryl Hanson; sister-in-law, Charlotte Stiller; as well as many nieces and nephews. She is preceded in death by her parents and brother, Jim Stiller.

The family would like to thank all of the doctors and nurses at ThedaCare Medical Center in Neenah for their wonderful care and concern.

Time of visitation will be held from 3:00pm until the start of the service. A memorial service for Lorraine will be held at Mueller Funeral Home, 904 E Main St, Winneconne, on Monday, October 19, 2026, at 6:00pm.