A memorial service for Marvin Willis Slykhuis, age 77 of Knoxville, will be held on Monday, August 13th at 10:00 AM at St. Anthony’s Catholic Church in Knoxville. Visitation will begin at 9 AM until the time of the service. Memorials may be made to Hospice of Pella or to the family. Williams Funeral Home is in charge of the arrangements.