- Good Hope Plantation Journal, 1835-1874 (bulk 1835-1857)1
- Gourdin Family Collection, 1707-19031
- Greenville County Coroner Reports 573
- Grimke family papers, 1678-1977199
- Halley's Comet Project, 1985-198688
- Harby Academy Cashbook1
- Harry Blas and Erika Stockfleth Blas Papers, circa 1910-circa 19805
- Harry and William Birch Collection3
- Hasell Family Papers, 1803 - 18844
- Hebrew Benevolent Society Papers1
- Helen Evangeline Banks Harrison papers (circa 1850 - 1985)2
- Henry Laurens Account Book, 1766-17331
- Henry Laurens papers, 1747-1860239
- Henry Mouzon Plat Book, 1769-18191
- Henry William Ravenel Papers, 1739-1935242
- Henry William Ravenel's Private Journals1
- Henry William Ravenel, Plants and Planter645
- Henry William Ravenel: Plants & Planter5
- Heyward and Ferguson Family Papers, 1806-1923389
- Historic Southern Naturalists96