Namesakes
Nobel Prize Winners:
1 economics, 1 literature
(literature) William Butler Yeats 1923 
(economics) Robert B. Wilson (a.k.a. Butler) 2020
Notable Writers:
1 poet
William Butler Yeats 1865-1939
Other Notables:
1 person
Wild Bill Hickok (a.k.a. Butler) 1837-1876 gunfighter