O Pioneers! is a 1913 novel by American author Willa Cather, written while she was living in New York. It is the first novel of her Great Plains trilogy, followed by The Song of the Lark (1915) and My �ntonia (1918).Willa Sibert Cather December 7, 1873 - April 24, 1947 was an American writer who achieved recognition for her novels of frontier life on the Great Plains, including O Pioneers! (1913), The Song of the Lark (1915), and My �ntonia (1918). In 1923 she was awarded the Pulitzer Prize for One of Ours (1922), a novel set during World War I.