FamilySearch.org info on Calhoun County, South Carolina:
https://familysearch.org/wiki/en/Calhoun_County,_South_Carolina_Genealogy
Calhoun County FamilySearch notes:
Church records, 1767-1838
Authors: St. Matthew’s Parish (Calhoun County, South Carolina
https://familysearch.org/search/catalog/373287?availability=Family%20History%20Library
(Online but not ready yet)
Minutes of the vestry of St. Matthew’s Parish, South Carolina, 1767-1838
Statement of Responsibility: edited by A.S. Salley
https://familysearch.org/search/catalog/20065?availability=Family%20History%20Library
(Downloaded)
Orangeburg documents
Statement of Responsibility: by Jack D. Ruple
https://familysearch.org/search/catalog/541701?availability=Family%20History%20Library
(Online but not ready yet)