- P. Burwell Rogers Papers, 1923/197811
- P.J. Beattie Jr. papers, 1935/19421
- Pabst School of Music records, 1924/19832
- Pace Family Papers, 1947/20061
- Page County Virginia Papers
1904-1944,
n.d.2
- Painters Local Union, No. 91, Wheeling, Records, 1886/19584
- Panoramic Photographs Collection, 1890/2008, bulk 1890/19603
- Papers of Christine Meadows, Curator, 1960/19978
- Papers of Ellen Glasgow
1880-196364
- Papers of James Lawrence Basil Williams
ca.
1895-19959
- Papers of John Casey
1939-19901
- Papers of Mark Twain
1862-1946, bulk 1872-19102
- Papers of Mary Johnston2
- Papers of Mary V. Thompson, Research Historian, 1980/20121
- Papers of Robert Frost
1873-19819