- P. Burwell Rogers Papers, 1923/197816
- Pabst School of Music records, 1924/19832
- Pace Family Papers, 1947/20063
- Page Milling Company daybooks, 1955/19602
- Painters Local Union, No. 91, Wheeling, Records, 1886/19582
- Pakistan Missionary Diary, 19551
- Pamela Brink Papers, 1951/19561
- Pamela Webb Architectural Collection,, 1950/20092
- Panoramic Photographs Collection, 1890/2008, bulk 1890/19601
- Papers of Christine Meadows, Curator, 1960/199728
- Papers of Ellen Glasgow
1880-19631
- Papers of James Lawrence Basil Williams
ca.
1895-199513
- Papers of John Casey
1939-19901
- Papers of Marianne Moore
1955-19633
- Papers of Mary Johnston5