Song of Myself was included in Walt Whitman's major work, Leaves of Grass. Whitman paid for the publication of the first edition himself. Three Lions/Getty Images hide caption

itoggle caption Three Lions/Getty Images

James Wilkinson rose to the rank of brigadier general during the Revolutionary War, and after a break from military service was commissioned a major general in the War of 1812. Walker & Company hide caption

itoggle caption Walker & Company

Lange's "Migrant Mother" is one of her most famous photographs. Dorothea Lange/Courtesy of the Library of Congress hide caption

itoggle caption Dorothea Lange/Courtesy of the Library of Congress