Hey, Frank. Here is something that may help you a little. Like I said in another thread, depending on who you talk to Texas will have 5 or 7 regions.

If you look at the area labeled 'Piney Woods' this is typically known as East Texas. Deep East Texas is where I live. Dallas, in this drawing is in the 'Prairies and Lakes' section and would be North East .... Or North Texas depending on who you are talking to.
Anyway, thought this might help you. There are better region maps that will list the regions as East, North, West, South, Hill Country (central), etc....
Good Luck!
KC