thumb| Yeats photographed in 1903 by [[Alice Boughton]]
William Butler Yeats (13 June 186528 January 1939) was an Irish poet, dramatist, writer, and politician. One of the foremost figures of 20th-century literature, he was a driving force behind the Irish Literary Revival and became a pillar of the Irish literary establishment who helped to found the Abbey Theatre. In his later years, he served two terms as a Senator of the Irish Free State.