Glenfawn, Tx

I have some mineral interest in what was years ago called Glenfawn. The location is on HWY 84, between MT Enterprise and Recklaw. I think it is in Rusk County. My great granddad Lehman owned a piece of land that has an old house on it that has been put on the national registry. I think at one time, someone bought it and was letting people tour it. I need to come to the courthouse and check it . I'm not sure what the percentage of mineral rights that he retained . If anyone knows anything about this property, please help me out. I am Alan Wilson, I live in Bogalusa, LA. I am kin to the Youngbloods, Delafields, and Lehmans.