<P> Marion Mitchell Morrison ( born Marion Robert Morrison ; May 26 , 1907 -- June 11 , 1979 ) , known professionally as John Wayne and nicknamed `` The Duke '' , was an American actor and filmmaker . An Academy Award - winner for True Grit ( 1969 ) , Wayne was among the top box office draws for three decades . </P>
<P> Marion Mitchell Morrison ( born Marion Robert Morrison ; May 26 , 1907 -- June 11 , 1979 ) , known professionally as John Wayne and nicknamed `` The Duke '' , was an American actor and filmmaker . An Academy Award - winner for True Grit ( 1969 ) , Wayne was among the top box office draws for three decades . </P>
what movie did john wayne get an oscar for
what movie did john wayne get an oscar for
True Grit
True Grit