It looks like Shelby county has a nice site to access property records. http://cc.co.shelby.tx.us/RealEstate/SearchImage.aspx
Your property appears to be in Abstract 721 (A-721) of Shelby county in the James B. Baker Survey. Looks like a property with several active gas wells in the area. See map below.
Not sure if this answers all of your questions, but it gives you some points of reference. Welcome to the forum by the way. There are many people knowledgeable about Texas who participate in the discussions here.