- P. Burwell Rogers Papers, 1923/19782
- Pace Family Papers, 1947/20062
- Pamela Webb Architectural Collection,, 1950/200931
- Panoramic Photographs Collection, 1890/2008, bulk 1890/19601
- Paola Zellner Bassett Architectural Collection,, 1986/19911
- Papers of Christine Meadows, Curator, 1960/199762
- Papers of Dr. August E. Kehr
ca.
1924-199427
- Papers of Dr. Sandra F.
McDonald-American Rhododendron Society
1977-199711
- Papers of James Lawrence Basil Williams
ca.
1895-199516
- Papers of John Casey
1939-199015
- Papers of Mary V. Thompson, Research Historian, 1980/201235
- Papers of Virginius Dabney
1983-19863
- Papers of the American Rhododendron
Society
ca. 1944-1948;
1965-19978
- Papers of the Mount Vernon Ladies' Association, 1858/2016183
- Papers of the Superintendent and Resident Director, 1850/1996111