Subject
- Patriotic music--United States--World War, 1914-1918--United States--Songs and music1
- Patriotism--Songs and music1
- Pershing, John J. (John Joseph) 1860-1948--Songs and music1
- Pershing, John J. John Joseph, 1860-1948--Songs and music1
- Pershing, John Jo. (John Joseph), 1860-1948--Portraits1
- Piano music (Blues)1
- Piantadosi, Al, 1884-1955--Portraits1
- Picardy (France)--Songs and music1
- Plattsburgh Barracks (N.Y.)--Songs and music1
- Political ballads and songs--United States1
- Popular Music1
- Popular music -- United States -- 1911-19201
- Popular music-- United States--1901-19101
- Popular music--1911-1920--Excerpts1
- Popular music--1911-1920--Vocal scores with piano1
- Popular music--1931-19401
- Popular music--Canada--1911-19201
- Popular music--England1
- Popular music--United States --1911-19201
- Popular music--United States y. 1911-19201