Donald L. Keller, age 84, of Lancaster, Wisconsin passed away on Tuesday, March 28, 2023, at Grant Regional Health Center in Lancaster. He was born January 24, 1939, the son of Jesse and Velma (Hickin) Keller.  Funeral Services will be held on Wednesday, April 5, 2023, at 10:30 a.m. at the Lancaster United Methodist Church with Pastor David Kim officiating. Burial will be held in the Stitzer United Methodist Cemetery. Family and friends may call on Tuesday, April 4, 2023, from 4:00 p.m. to 7:00 p.m. and on Wednesday, April 5, 2023, from 9:30 a.m. until time of services at the church. Martin Schwartz Funeral Home & Crematory in Lancaster is assisting the family. In lieu of plants and flowers, a Donald L. Keller memorial fund has been established.