Mark Steven Diederich, 61, of Countryside.  Beloved husband of Paulette.  Loving father of Jessica (Brian) Diederich-Smart and Jason Diederich.  Dear grandfather of Sarah, Ella, Madison, Zachary, Audrey and Isabelle.  Devoted brother of Tony, John, Chris (Monica) and the late Mike Diederich.  Fond uncle of many.  Visitation 3pm until time of service 8pm Saturday, May 14 at Hallowell & James Funeral Home, 1025 W. 55^th St., Countryside.  Private cremation to follow.  In lieu of flowers, memorial contributions to Clearbrook, 1835 W. Central Rd., Arlington Heights, IL 60005 (Clearbrook.org) appreciated.  Mark was owner of Marks-on-66 for 11 years, he was an avid Cub fan, and he loved golfing, cooking and family get-togethers.  Funeral home phone 708/352-6500 or www.hjfunerals.com