- Glover Family Papers, 1729-ca.19557
- Goldberg Family Papers, 1902-19532
- Gordon R. Hennigar Pathology Museum Collection899
- Greenwood County Library, Historical Photographs2
- Grimke family papers, 1678-197761
- Halley's Comet Project, 1985-19861
- Hampstead and Bethany Cemeteries58
- Harby Academy Cashbook1
- Hebrew Benevolent Society Papers1
- Helen Evangeline Banks Harrison papers (circa 1850 - 1985)21
- Henrietta Yurchenco Field Recordings, 1970-197129
- Henry Laurens Account Book, 1766-17331
- Henry Laurens papers, 1747-18603
- Henry William Ravenel Papers, 1739-193516
- Herald-Journal Willis Collection2
- Heyward and Ferguson Family Papers, 1806-1923389
- Historic Charleston Foundation Oral History Project28
- Historic Charleston Foundation's Map Collection2
- Historic Charleston Foundation's Tours of Homes10
- Historical Newspapers12