- O Tan-Faced Prairie-Boy
- Other Concord Notations
- Ouster's Last Rally
- Outlines for a Tomb [G. P., Buried 1870]
- Out of May's Shows Selected
- O You Whom I Often and Silently Come
- O You Whom I Often and Silently Come by Ned Rorem
- Passage to you! by Frederick Delius
- Patent-Office Hospital
- Paumanok
- Paumanok, and my Life on it as Child and Young Man
- Paying the Bounties
- Pensive and Faltering
- Pensive on Her Dead Gazing
- Perfections
- Plays and Operas too
- Portals
- Prairie Analogies—the Tree Question
- Prayer of Columbus
- Prayer of Columbus by Alberto García Demestres