Rental property in Jack AND WISE Counties are almost non exsistant. The agents in these two counties very rarely even list rental property because they go so fast. My suggestion to you would be to check for an agent in the Jacksboro area and just give them a call to see who they know that has rental property. If they are like my office, I keep a list of different individuals that have rentals from time to time.
One good site for checking for numbers in a particular area is http://www.whitepages.com . Use the business side and just put Jacksboro in the area and type in Real Estate.

Good Luck & GOD BLESS.