Question: Delbert Mann and Nunnally Johnson, share which occupation?

full_context: Document 1: Leslie H. Martinson: Leslie Herbert "Les" Martinson (January 16, 1915 – September 3, 2016) was an American television and film director.
Document 2: Billy Wilder: Samuel "Billy" Wilder ( ; ] ; June 22, 1906March 27, 2002) was an Austrian-American filmmaker, screenwriter, producer, artist, and journalist whose career spanned more than five decades. He is regarded as one of the most brilliant and versatile filmmakers of Hollywood's golden age. With "The Apartment", Wilder became the first person to win Academy Awards as producer, director, and screenwriter for the same film.
Document 3: Hugh Johnson (cinematographer): Hugh Johnson (died June 2015) was an Irish cinematographer and director of film and commercials best known for his collaborations with Ridley Scott and his brother Tony, working on films like "The Duellists", "The Hunger", "G.I. Jane", and "Kingdom of Heaven".
Document 4: Norman Taurog: Norman Rae Taurog (February 23, 1899 – April 7, 1981) was an American film director and screenwriter. From 1920 to 1968, Taurog directed 180 films. At the age of 32, he received the Academy Award for Best Director for "Skippy" (1931). He is the second youngest person ever to win the award after Damien Chazelle, who won for "La La Land" in 2017. He was later nominated for Best Director for the film "Boys Town" (1938). He directed some of the best-known actors of the twentieth century, including his nephew Jackie Cooper, Spencer Tracy, Mickey Rooney, Judy Garland, Deanna Durbin, Fred Astaire, Gene Kelly, Deborah Kerr, Peter Lawford, Dean Martin, Jerry Lewis, and Elvis Presley. Taurog directed six Martin and Lewis films, and nine Elvis Presley films, more than any other director. For his contribution to the motion picture industry, Norman Taurog has a star on the Hollywood Walk of Fame at 1600 Vine Street.
Document 5: James Young Deer: James Young Deer (April 1, 1876 – April 6, 1946), also known as J. Younger Johnson or Jim Young Deer, was actually born James Young Johnson in Washington, D.C. Although he was identified in the early Hollywood trade paper Moving Picture World as of the Winnebago Tribe of Nebraska, his ancestry is of the Nanticoke people of Delaware. He became an early film actor, director, writer, and producer. He is believed to be the first Native American filmmaker/producer in Hollywood. Together with his wife and partner Lillian St. Cyr, Winnebago, the couple were labeled an "influential force" in the production of one-reel Westerns during the first part of the silent film era. Their films, along with several others of the silent era, were notable for portraying Native Americans in a positive light.
Document 6: Delbert Mann: Delbert Martin Mann Jr. (January 30, 1920 – November 11, 2007) was an American television and film director. He won the Academy Award for Best Director for the film "Marty" (1955), adapted from a 1953 teleplay of the same name which he had also directed. From 1967 to 1971, he was president of the Directors Guild of America. In 2002, he received the DGA's honorary life member award. Mann was credited to have "helped bring TV techniques to the film world."
Document 7: Delmer Daves: Delmer Lawrence Daves (July 24, 1904 – August 17, 1977) was an American screenwriter, director and producer.
Document 8: Philip Dunne (writer): Philip Ives Dunne (February 11, 1908 – June 2, 1992) was a Hollywood screenwriter, film director and producer, who worked prolifically from 1932 until 1965. He spent the majority of his career at 20th Century Fox crafting well regarded romantic and historical dramas, usually adapted from another medium. Dunne was a leading Screen Writers Guild organizer and was politically active during the "Hollywood Blacklist" episode of the 1940s-1950s. He is best known for the films "How Green Was My Valley" (1941), "The Ghost and Mrs. Muir" (1947), "The Robe" (1953) and "The Agony and the Ecstasy" (1965).
Document 9: Anthony Mann: Anthony Mann (June 30, 1906 – April 29, 1967) was an American actor and film director, most notably of films noir and Westerns. As a director, he often collaborated with the cinematographer John Alton and with actor James Stewart in his Westerns.
Document 10: Nunnally Johnson: Nunnally Hunter Johnson (December 5, 1897 – March 25, 1977) was an American filmmaker who wrote, produced, and directed motion pictures.
Document 11: John Huston: John Marcellus Huston ( ; August 5, 1906 – August 28, 1987) was an American film director, screenwriter and actor. He wrote the screenplays for most of the 37 feature films he directed, many of which are today considered classics: "The Maltese Falcon" (1941), "The Treasure of the Sierra Madre" (1948), "The Asphalt Jungle" (1950), "The African Queen" (1951), "The Misfits" (1961), "Fat City" (1972) and "The Man Who Would Be King" (1975). During his 46-year career, Huston received 15 Oscar nominations, won twice, and directed both his father, Walter Huston, and daughter, Anjelica Huston, to Oscar wins in different films.
Document 12: Robert Altman: Robert Bernard Altman ( ; February 20, 1925 – November 20, 2006) was an American film director, screenwriter, and film producer. A five-time nominee of the Academy Award for Best Director and an enduring figure from the New Hollywood era, Altman was considered a "maverick" in making films with a highly naturalistic but stylized and satirical aesthetic, unlike most Hollywood films. He is consistently ranked as one of the greatest and most influential filmmakers in American cinema.
Document 13: Nora Johnson: Nora Johnson, daughter of filmmaker Nunnally Johnson and Marion Byrnes, was born in Hollywood, California in 1933. She was educated at the Brearley School, Abbot Academy, and Smith College, from which she graduated in 1954. Her sister was the film editor Marjorie Fowler.
Document 14: John Huston: John Marcellus Huston ( ; August 5, 1906 – August 28, 1987) was an American film director, screenwriter and actor. He wrote the screenplays for most of the 37 feature films he directed, many of which are today considered classics: "The Maltese Falcon" (1941), "The Treasure of the Sierra Madre" (1948), "The Asphalt Jungle" (1950), "The African Queen" (1951), "The Misfits" (1961), "Fat City" (1972) and "The Man Who Would Be King" (1975). During his 46-year career, Huston received 15 Oscar nominations, won twice, and directed both his father, Walter Huston, and daughter, Anjelica Huston, to Oscar wins in different films.
Document 15: Joe Mantell: Joe Mantell (né Mantel; December 21, 1915 – September 29, 2010) was an American actor of film and television. He was nominated for an Academy Award for Best Supporting Actor for his role as Angie in the 1955 film "Marty", which earned the Best Picture Award.
ground_truth: director