- Kenneth Frederick Marsh Photograph Collection3
- Kinloch Gun Club102
- Langdon Cheves III Hunting Notes & Art1
- Langdon Cheves Papers, 1777-18642
- M. Hayes Mizell Papers1
- Mamie E. Garvin Fields Papers, 1894 - 19871
- Middleton Family Papers, 1736-19291
- Midlands Memories1
- Minutes of the Annual Conferences of the Baptist, Episcopal, Lutheran, Methodist, and Presbyterian Churches in South Carolina, 1785-19202
- Miriam DeCosta Seabrook and Herbert U. Seabrook Papers, 1882-19953
- Pawleys Island Civic Association436
- Pee Dee District Dental Society Records, 1933-19881
- Plantersville Oral Histories, 2019-202126
- Postcard Collection of Mullins, South Carolina2
- Proclamations, Politics, and Commerce: Broadsides from the Colonial Era to the Present at the South Caroliniana Library2
- Richard Furman and James C. Furman Collection11
- Robert Heriot Correspondence, 17811
- Russell Maxey Photograph Collection3
- Sanborn Fire Insurance Maps of South Carolina5
- Scenes in Charleston, Georgetown, and Flat Rock, Late 19th Century7