Preservation Organizations in San Augustine County include:
Daughters of the American Revolution: Dolores de los Ais Chapter, established 1984 - preserving patriotism, dedicating and marking patriot grave sites, preserving military records, holding Veteran’s Day programs.
Daughters of the Republic of Texas: Ezekiel Cullen Chapter, established 1953 - dedicating and marking patriot gravesites, maintaining the Ezekiel Cullen home and museum, executing tours of the city.
San Augustine County Historical Commission: established 1956 - preservation of historical sites and records
San Augustine County Historical Society: established in 1950s - fund raising for preservation, maintaining the museum/theatre and China Grove
San Augustine Garden Club: established in 1948 - preservation of the courthouse and rehabilitation of a Queen Anne home in 2001 for community meetings and educational extension of the public library
San Augustine Heritage Society: established in 2001 - preserving African American history and genealogy and coordinating the Lewis Hotel restoration and fund raising events
Sons of the Republic of Texas: Alexander Horton Chapter, re-charted in 1981 - dedicating and marking patriot grave sites
Research Center at Mission Dolores de los Ais: archeology lab and American Indian/Spanish museum
Historical Preservation Office: preserving, protecting and accessing public records
San Augustine Public Library: housing historical records and family histories
San Augustine Courthouse: housing original historical documents