Which of these poets wrote "O Captain! My Captain!"?

"O Captain! My Captain!" is an extended metaphor poem written by Walt Whitman in 1865 about the death of U.S. president Abraham Lincoln.

Well received upon publication, the poem was Whitman's first to be anthologized and the most popular during his lifetime.

During the American Civil War, Whitman moved to Washington, D.C., where he worked for the government and volunteered at hospitals. Although he never met Lincoln, Whitman felt a connection to him and was greatly moved by Lincoln's assassination. "My Captain" was first published in "The Saturday Press" on November 4, 1865, and appeared in "Sequel to Drum-Taps" later that year. He later included it in the collection "Leaves of Grass" and recited the poem at several lectures on Lincoln's death.

Walter Whitman Jr. (May 31, 1819 – March 26, 1892) was an American poet, essayist, and journalist. He is considered one of the most influential poets in American literature. Whitman incorporated both transcendentalism and realism in his writings and is often called the father of free verse. His work was controversial in his time, particularly his 1855 poetry collection "Leaves of Grass", which was described by some as obscene for its overt sensuality.