Born in Huntington on Long Island, as a child and through much of his career he resided in Brooklyn. At age 11, he left formal schooling to go to work. Later, Whitman worked as a journalist, a teacher, and a government clerk. Whitman's major poetry collection, "Leaves of Grass", was first published in 1855 with his own money and became well known. The work was an attempt at reaching out to the common person with an American epic. He continued expanding and revising it until his death in 1892. During the American Civil War, he went to Washington, D.C. and worked in hospitals caring for the wounded. His poetry often focused on both loss and healing. On the death of Abraham Lincoln, whom Whitman greatly admired, he wrote his well known poems, "O Captain! My Captain!" and "When Lilacs Last in the Dooryard Bloom'd", and gave a series of lectures. After a stroke towards the end of his life, Whitman moved to Camden, New Jersey, where his health further declined. When he died at age 72, his funeral was a public event.