Grayburg Cemetery
Sour LakeApprox GPS Coords: 30.114444, -94.408056
From Hwy 105 in Sour Lake, go south on Hwy 326 for 1.7 miles to Grayburg and turn right (west) onto Old Monument Road. The cemeteries are at the end of the road.
I don't have any more information on this cemetery,