All are invited to the annual White Cross dedication with MADD Sarnia/Lambton to erect 270 crosses on the front lawn of Temple Baptist Church, 1410 Quinn Dr. Sarnia on Saturday, Nov. 3. Volunteers are needed at 10:30 a.m. to hammer the crosses into the ground.   Dedication and awarding of police appreciation plaques at 11 a.m. Refreshments to follow. Call MADD Sarnia/Lambton for details: 519-339-9962.