03:51 hours, trailer fire in Hebron. Hebron, Salisbury, Delmar and Mardela Springs were dispatched for a reported structure fire in the 7000 block of Wolf Road. Car 5 arrived to find a working trailer fire, with all occupants out of the structure. Salisbury Engine 16-1 arrived first and stretched a hand line in service and began fire suppression. Hebron Engine 507 was next to arrive on-scene and placed an additional hand line in service. Crew had the fire under control in under 30 minutes. The American Red Cross was called to the scene to assist with the care of two homeowners. The Maryland State Fire Marshal's Office is investigating the cause of the fire. Delmar and Mardela Springs Fire Dept's were also on-scene assisting with overhaul.