Institution
- University of South Carolina. Irvin Department of Rare Books and Special Collections.149
- Middleton Place Foundation116
- Spartanburg County Public Libraries107
- National Park Service95
- Catholic Diocese of Charleston Archives84
- University of South Carolina. University Archives.67
- The Citadel Archives & Museum64
- Greenville County Library, Carolina First South Carolina Room.62
- The Charleston Museum57
- Coastal Carolina University54
- University of South Carolina. South Caroliniana Library49
- South Carolina State Parks48
- University of South Carolina. Government Information and Maps Department48
- South Carolina Historical Society; Furman University Libraries47
- University of South Carolina. School of Medicine Library45
- Chester County Historical Society Archives (S.C.)44
- The Charleston Museum Archives44
- Fort Sumter and Fort Moultrie National Historical Park43
- Coastal Carolina University, Horry County Archives Center42
- University of South Carolina. South Carolina Political Collections.42