A 37-year old newlywed from Dallas, OR is missing and her vehicle has been found alongside Hwy. 101 near Florence. Law enforcement has been searching for Heather Mounce Davison in Western Lane County after her red 2008 Chevrolet Cobalt was found with her purse & identification inside. Her car keys were missing. Davison was married Aug. 5 and had just returned from her honeymoon when she went missing on Saturday, Aug. 12.