Subjects
- Painting2
- Pamphlets6
- Panama Canal (Panama)1
- Paper money5
- Parades44
- Pardons5
- Peacekeeping forces, American1
- Peleliu, Battle of, Palau, 1944.1
- Peninsular Campaign (1862)2
- Persian Gulf War (1991)11
- Persian Gulf War, 1991—Personal narratives12
- Petitions1
- Philanthropists1
- Philippines—History—1898-19464
- Philippines—History—Philippine American War, 1899-19022