- John Wade Kidwell Family Papers10
- Joseph W. Summers Papers1
- Justus Collins (1857-1934) Papers57
- Kanawha County (W. Va.) Court Records and Miscellaneous Papers916
- Kanawha County Public Schools, Textbook Controversy Records6
- Katharine Gregg Papers6
- Katherine M. Hunter, Compiler, Local Histories and Genealogies8
- Katherine Williams, Collector, Williams Family Papers2
- Kathleen Cruise Architectural Papers8
- Labor History Collection of Publications and Artifacts1
- Lloyd Layman Papers regarding Firefighting14
- Lonnie Miller, Compiler, Research Papers Regarding Coal History in Southwestern Pennsylvania4
- Lorilla Frances Bullard Tower, Doctor, Papers3
- Louis and Sallie Bennett, Papers of a Lewis County Family4
- Louise McNeill, Poet, Papers5