- P. Burwell Rogers Papers, 1923/197814
- Pabst School of Music records, 1924/19831
- Pace Family Papers, 1947/20061
- Painters Local Union, No. 91, Wheeling, Records, 1886/19584
- Panoramic Photographs Collection, 1890/2008, bulk 1890/19601
- Papers of Christine Meadows, Curator, 1960/19978
- Papers of Ellen Glasgow
1880-19634
- Papers of James Lawrence Basil Williams
ca.
1895-19959
- Papers of John Casey
1939-19901
- Papers of Mark Twain
1862-1946, bulk 1872-19101
- Papers of Mary Johnston3
- Papers of Mary V. Thompson, Research Historian, 1980/20121
- Papers of Robert Frost
1873-198111
- Papers of Virginius Dabney
1902-19835
- Papers of Virginius Dabney
1926-19761