[ReesiesDad]

Make up POSTERS now. Put them at STOP signs so they're seen. Make sure the phone number is big enough to read from a car.
Contact the Animal Control in that area.
Watch Craigslist, not only Found Yorkie, but watch for Found Dog. Many who pick up a dog like this will not post a breed as part of the proof of ownership process.
Bang on neighbor's doors and let them all know.
If he's micro-chipped, contact the chip register NOW to red flag the chip.
When Reesie is frightened she finds a tiny place to hide so look in places that you might not expect to find a dog. He might not be wandering.
If they have the money, contact k9pi.com for use of search dogs, but be prepared, it's not cheap.
Contact area vets and rescues and let them all know.

This was just a small part of Gen's process with finding Cookie.