Greta, even if you did find her former owner, there would always be the question in my mind, concerning her, if she would be honestly happy with them. Many cat run away from their homes because of ill-treatment, or for some other factor. Personally, I'd keep her and notify only those vets and shelters in the immediate area. She may have jumped out of a car or van or inadvertantly got away from someone who was traveling or moving through the area. If you hear of no one claiming her, then I would keep her. She is obviously a show cat, and as has been previously posted , that they may only want her for that reason, but not for a loving companion.

.............wayne