Sequel to Drum-Taps: When Lilacs Last in the Dooryard Bloom'd and other poems is a collection of eighteen poems written and published by American poet Walt Whitman in 1865. Most of the poems in the collection reflect on the American Civil War (1861–1865), including the elegies "When Lilacs Last in the Dooryard Bloom'd" and "O Captain! My Captain!", which were written in response to the 1865 assassination of Abraham Lincoln. The poems of this book were later included in Leaves of Grass, Whitman's comprehensive collection of his poetry that was frequently expanded throughout his life. Source: Wikipedia (en)