- Patriotism--Songs and music1
- Peace--Songs and music2
- Pershing, John H. (John Joseph), 1860-1948--Songs and music2
- Pershing, John J. (John Joseph) 1860-1948--Songs and music1
- Pershing, John J. (John Joseph), 1860-19484
- Pershing, John J. (John Joseph), 1860-1948--Portraits4
- Pershing, John J. (John Joseph), 1860-1948--Songs and music6
- Pershing, John J. John Joseph, 1860-1948--Songs and music1
- Pershing, John Jo. (John Joseph), 1860-1948--Portraits1
- Phillips, Sid--Portraits2
- Piano music12
- Piano music (Blues)1
- Piantadosi, Al, 1884-1955--Portraits1
- Plattsburgh Barracks (N.Y.)--Songs and music1
- Political ballads and songs--United States1
- Polkas (Voice with piano)2
- Popular Music1
- Popular instrumental music--1911-19203
- Popular instrumental music--United States--1911-19206
- Popular music134