Who directed 'On the Waterfront', the Best Picture winner for 1954?

Who directed 'The Greatest Show on Earth', the Best Picture winner for 1952? Which film won the Academy Award for Best Picture for 1953? Who directed 'From Here to Eternity', the Best Picture winner for 1953? Which film won the Academy Award for Best Picture for 1954? Which film won the Academy Award for Best Picture for 1955? Who directed 'Marty', the Best Picture winner for 1955? Which film won the Academy Award for Best Picture for 1956? Who directed 'Around the World in 80 Days', the Best Picture winner for 1956?