Donald K. Seibert, age 86, U.S. Air Force, Veteran Korea, beloved husband of Winifred Seibert, loving father of Susan Chemler and William (Karen) Seibert; cherished grandpa of Thomas Chemler, Katlin (James) Fitzgerald, Laura Chemler and Kristine Seibert. Visitation Monday, October 16, from 4 to 9 pm at Nelson Funeral Home, 820 Talcott Road, Park Ridge; Lying-in-State Tuesday, October 17, from 9 am until time of service 10 am at St Luke's Lutheran Church, 205 N. Prospect Ave., Park Ridge. In lieu of flowers, memorials can be made to Shriners Hospital for Children; 2211 N. Oak Park Ave., Chicago, IL 60707. Interment Mt. Emblem Cemetery. For more info www.nelsonfunerals.com or 847-823-5122.