A couple of years ago I found this message on some forum but it had been posted 2 or 3 years earlier. I tried to contact this person Greg Woods but he never answered. This is what he wrote:
Last Month I went to an village in Mexico named La Mesa de Abajo. The village is in the state of Chihuahua, just across the border from Sonora. The villagers were descendants of Confederate soldiers who moved south of the border after the Civil War. The men names are Emil Clark, William Clark, Thomas Moore. Another man came later. His name is David DeMoss 1855-1952. The men married Mexican women and founded Bermudez, a town about 10 miles from La Mesa. Their children founded La Mesa about 1908. The two Clarks might be related. I don't know any parents' names. I think the two Clarks and Moore were born in the late 1840s.
The reason for this post is that I offered to find their distant US cousins. One of the young men from the village wrote a book about the history of La Mesa (150 pages handwritten). They want to send copies of the book to their US cousins. I have the young man's address (he is at an university in Cd. Obregon, Sonora). I know a little bit of information. But I will go back to the village or know people who will go back there in the late Winter/early Spring. Please send me an email or reply if you can help me with finding the cousins.