John M. Klancir, 90, of Naperville, formerly of Darien. Beloved husband of the late Irma, nee Hohmann. Loving father of John “Zeke” (Clemie) Klancir and Patti (Michael) Scudero. Grandpa of Christopher (Patti) and Melissa Klancir, Jennifer (Dale) Dykeman and Timothy Scudero. Great-grandpa of Sidney, Jake and Emma. Visitation 3 to 9pm Friday March 28th at Hallowell & James Funeral Home, 301-75th Street, Downers Grove, where service will be held at 11am on Saturday March 29th. Interment Clarendon Hills Cemetery. Memorials may be given to Wounded Warrior Project. Funeral info: 630-964-6500 or hjfunerals.com.