Willa Sibert Cather (; born Wilella Sibert Cather; December 7, 1873 – April 24, 1947) was an American writer. She was known for her novels of life on the Great Plains. Her best known works were "O Pioneers!", "The Song of the Lark", and "My Ántonia". In 1923, she was awarded the Pulitzer Prize for "One of Ours".