William Butler Yeats
From Memory Alpha, the free Star Trek reference
William Butler Yeats was an Irish poet in the late 19th and early 20th century.
When Jonathan Archer had trouble sleeping as a child, his mother recited one of Yeats' poems, The Song of the Wandering Angus to him, though Archer didn't learn it was from Yeats until he was older. (ENT: "Rogue Planet")
