Namesakes
American First Ladies:
1 first lady
Mary McElroy (a.k.a. Arthur) 1881-1885 
American Presidents:
1 president
Chester A. Arthur 1881-1885
Emmy Award Winners:
1 actress
(actress) Bea Arthur 1977; 1988 Maude; The Golden Girls
Notable Actors and Entertainers:
2 actors
Jean Arthur 1900-1991
Bea Arthur 1922-2009
Notable Musicians:
1 singer
James Arthur 1988-
Other Leaders:
1 prime minister
Prime Minister Owen Arthur 1994-2008 Barbados