Land Survey Abstract Indices of the Original Land Owners of Texas - Presidio County
Presidio Co. Genealogy Forum read and post messages about your ancestors for this county
Presidio County Message Board exchange genealogy findings with other  researchers of this county
Presidio County, TX Genweb Project a collection of online resources for genealogy researchers
The Tombstone Transcription Project - cemeteries for Presidio Co. TX
US GenWeb Archives for Presidio County cemeteries, newspapers, wills, military rosters etc recorded online
World War II Honor List of Dead and Missing Army and Army Air Forces Personnel - Presidio County

Additional Resources

Texas Newspaper Search enter your ancestor's name to instantly search the world's largest newspaper archive; over 12 million newspaper pages
Texas Birth Records
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Texas Death Records