Yawberry is one of the varient spellings of Yarborough. We have several of the various spellings of Yarbrough in our Yarbrough DNA Project but as yet no Yawberry's.
It would be interesting to find our which of the different Yarbrough lines the Yawberry's are related to.
Details for the project are at:
http://www.worldfamilies.net/surnames/Yarbrough/