In my database I have 17 surnames of people that were born and/or married in Lampazos during the 1700s. This list expands if I were to include neighboring communities and the nearby area of Monclova, Coahuila. (See attached GIF files for area maps.) In those days the population was rather limited and chances are that many/most people with the same surname/variants were related. I look forward to exchanging information.
The surnames (& similar spellings) I have are: Chavana, De Leon, De Villarreal, Enriquez, Gonzalez, Guajardo, Gudea, Medina, Ochoa, Orozco, Perez, Rodriguez, Salazar, Sanchez, Sanmiguel, Valdez and Yslas.
PD – Soy de Monterrey Raza, hablo Español.