Memorial Day ceremonies Published May 25, 2007 56th Fighter Wing Public Affairs LUKE AIR FORCE BASE, Ariz. -- A ceremony will be conducted 10 a.m. Sunday at the Arrowhead Memorial Gardens, located on the Community Church of Joy Campus. Col. David Orr, 56th Fighter Wing vice commander, is guest speaker. The Northwest Valley Veterans Association is conducting a ceremony at 9 a.m. Monday at Sunland Memorial Park in Sun City. Col. Daniel Walker, Air Force Research Laboratory commander, Mesa, Ariz., is guest speaker. The City of Avondale is conducting its annual sunset candlelight ceremony at 7 p.m. Monday at the Avondale Civic Center.