Books about American poetry -- 19th century (sorted alphabetically)
- Narrative and Lyric Poems (first series) for use in the Lower School
- Oberon and Puck : Verses grave and gay Helen Gray Cone
- Occasional Poems John Greenleaf Whittier
- O. Henry Encore O. Henry
- Old Man's Prayer George M. Baker
- Pennsylvania Pilgrim, and other poems John Greenleaf Whittier
- Personal Poems, Complete John Greenleaf Whittier
- Personal Poems II John Greenleaf Whittier
- Personal Poems I John Greenleaf Whittier
- Pike County Ballads and Other Poems John Hay
- Poems Henry Reed Conant
- Poems Thomas Hall Shastid
- Poems Julia C. R. Dorr
- Poems by Walt Whitman Walt Whitman
- Poems by William Cullen Bryant William Cullen Bryant
- Poems from the Inner Life Lizzie Doten
- Poems of Henry Timrod; with Memoir Henry Timrod
- Poems of Nature Henry David Thoreau
- Poems of Nature, Poems Subjective and Reminiscent and Religious Poems, Complete John Greenleaf Whittier
- Poems of Pleasure Ella Wheeler Wilcox
- Poems of Progress Lizzie Doten
- Poems: Pastoral and Psalm Benjamin Copeland
- Poems: Patriotic, Religious, Miscellaneous Abram Joseph Ryan
- Poems, translated and original E. F. Ellet
- poetical works of Edmund Clarence Stedman Edmund Clarence Stedman