I'm not sure which Dempsey Pace this may be. The El Camino Real (Kings Highway) runs through Bastrop (Mina). This Dempsey Pace settled around the time that Stephen F. Austin set up the "Little Colony" of 100 families in this area, so I would think you might start with some of those sources. Another famous Texas family that came from this group was the Burleson families along with some other families that came from the Nacogdoches/Natchitoches areas (again located on the El Camino Real as was San Antonio). Another source might be the Catholic church in this area. Remember that they were "supposed" to practice the Catholic faith to be able to settle in Texas. And people left this area after The Republic of Texas and later State of Texas formed to new land grants either for their service or for other "free" land. Kim