Services for Opal De Heer, age 93 of Knoxville, will be held on Saturday June 30th at 11:00 AM at the Bybee & Davis Funeral Home. Burial will follow in the Ruckman Cemetery. There will be an open visitation on Friday from 10:00 AM to 5:00 PM and the family will receive friends one hour prior to the service on Saturday. In lieu of flowers, memorials may be made to Hospice of Central Iowa. Online condolences may be left at BertrandFuneralHomes.com.