Memorial services for Don Vanderhorst age 74 of Knoxville will be held on Friday at 10:30 a.m. at the Bussey United Methodist Church.  The family will receive friends one hour prior to the service at the church.  In leiu of flowers, memorials may be made to the Bussey United MethodistChurch or to Hospice of Central Iowa- Knoxville Office.  Online condolences may be left at BertrandFuneralHomes.com.