- Mulberry Plantation Journals, 1853-1908 (bulk 1853-1889)295
- Inventory of S.C. Church Archives284
- Brandon Mill Ledger280
- Allston Family Papers, 1730-1901247
- Henry William Ravenel Papers, 1739-1935242
- Wilkinson-Keith Family Papers241
- South Carolina and the Civil War239
- The Joel Myerson Collection of Nineteenth-Century American Manuscripts, Images, and Ephemera229
- William Ancrum Letter Book and Account Book220
- Papers of the Cox and Chesnut Families, 1792-1858212
- John Henry McCray papers, 1929-1989211
- Grimke family papers, 1678-1977199
- Charleston Branch of the National Association for the Advancement of Colored People Papers, 1920-1995190
- Modjeska Simkins Papers, 1909-1992155
- YWCA of Greater Charleston, Inc., Records, 1906 - 2007151
- Langdon Cheves Papers, 1777-1864142
- The Marian Bruce Logan Collection of Civil Rights Activism, Personal Correspondence, 1945-1989135
- St. Paul's Episcopal Church records, 1819-1971134
- William ("Bill") Saunders Papers, circa 1950 - 2004124
- St. Andrew's Society of Charleston Records, 1729-2001118