Killins Gravel Shovel, Willow Run, 1941 Year 1941 Month November Day 11 Rights Held By Donated by the Ann Arbor News. © The Ann Arbor News. Copyright Copyright Protected Related Truck Starts For Plant Every 90 Seconds Photo Subjects Road Construction Materials Trucking Co. Manufacturing Killins Gravel Co. Ford Motor Company World War II Willow Run Airport Willow Run Bomber Plant Old News Ann Arbor News Ray Killins Willow Run (Mich.)