Question: Who was born first out of directors George Cukor and John Greyson?

full_context: Document 1: George Seaton: George Seaton (April 17, 1911 – July 28, 1979) was an American screenwriter, playwright, film director and producer, and theatre director.
Document 2: Michael Curtiz: Michael Curtiz ( ; born Manó Kaminer, December 24, 1888 April 10, 1962) was a Hungarian-born American film director, recognized as one of the most prolific directors in history. He directed classic films from the silent era and numerous others during Hollywood's Golden Age, when the studio system was prevalent.
Document 3: Gus Van Sant: Gus Green Van Sant, Jr. (born July 24, 1952) is an American film director, screenwriter, painter, photographer, musician and author who has earned acclaim as both an independent and more mainstream filmmaker. His films typically deal with themes of marginalized subcultures, in particular homosexuality; as such, Van Sant is considered one of the most prominent auteurs of the New Queer Cinema movement.
Document 4: John Grierson: John Grierson CBE (26 April 1898 – 19 February 1972) was a pioneering Scottish documentary maker, often considered the father of British and Canadian documentary film. In 1926, Grierson coined the term "documentary" in a review of Robert Flaherty's "Moana".
Document 5: Gay Man's Guide to Safer Sex: Gay Man's Guide To Safer Sex is the name of a safer sex instructional documentary produced by Mike Esser and Tony Carne of Pride Video in association with the Terrence Higgins Trust in 1992. The film was directed by David Lewis and featured a soundtrack by John Balance and Peter Christopherson of Coil. The medical information included in the film is presented by Mike Youle, a British doctor specialising in HIV treatment. In 1997 a sequel was released directed by Robert Falconer. "Gay Man's Guide To Safer Sex '97" featured a radical recut of some of the original scenes asking the BBFC to look again at what was permissible and becoming one of the very first programmes to discuss the breakthrough of Triple Combination Therapy and the ramifications and personal experiences of living with HIV. The medical information and discussion was again led by Mike Youle. The 1997 film was released on retail video in the UK and USA and later on DVD. It is still in distribution on DVD.
Document 6: George Abbott: George Francis Abbott (June 25, 1887 – January 31, 1995) was an American theater producer and director, playwright, screenwriter, and film director and producer whose career spanned nine decades.
Document 7: George Melford: George H. Melford (February 19, 1877 – April 25, 1961) was an American stage and film actor, director, producer, and screenwriter. Often taken for granted as a director today, the stalwart Melford's name by the 1920s was, like Cecil B. DeMille's, appearing in big bold letters above the title of his films.
Document 8: The Making of Monsters: The Making of Monsters is a Canadian short film, directed by John Greyson and released in 1991. Made while Greyson was a student at the Canadian Film Centre, the film's premise is that Bertolt Brecht is alive and living in Toronto, and actively interfering with the production of a heavily sanitized movie of the week about the 1985 death of Kenneth Zeller in a gaybashing attack.
Document 9: David O. Selznick: David O. Selznick (May 10, 1902June 22, 1965) was an American film producer, screenwriter and film studio executive. He is best known for producing "Gone with the Wind" (1939) and "Rebecca" (1940), both earning him an Academy Award for Best Picture.
Document 10: Stanley Kubrick: Stanley Kubrick ( ; July 26, 1928 – March 7, 1999) was an American film director, screenwriter, producer, cinematographer, editor, and photographer. He is frequently cited as one of the greatest and most influential directors in cinematic history. His films, which are mostly adaptations of novels or short stories, cover a wide range of genres, and are noted for their realism, dark humor, unique cinematography, extensive set designs, and evocative use of music.
Document 11: John Gray (Canadian author): John Gray is a Canadian journalist and author whose work includes "Paul Martin: The Power of Ambition", a biography with an emphasis on Martin's lifelong quest to be Prime Minister. A former journalist with the "Ottawa Citizen", Gray also had many roles in 20 years of work for "The Globe and Mail", including writer, editor, foreign correspondent, and Ottawa bureau chief. He won three National Newspaper Awards.
Document 12: Pissoir (film): Pissoir, retitled Urinal in some countries, was the first feature film directed and released by John Greyson.
Document 13: Leo McCarey: Thomas Leo McCarey (October 3, 1898 – July 5, 1969) was a three-time Academy Award winning American film director, screenwriter and producer. He was involved in nearly 200 movies, the most well known today being "Duck Soup", "Make Way for Tomorrow", "The Awful Truth", "Going My Way" and "An Affair To Remember".
Document 14: George Cukor: George Dewey Cukor ( ; July 7, 1899 – January 24, 1983) was an American film director. He mainly concentrated on comedies and literary adaptations. His career flourished at RKO when David O. Selznick, the studio's Head of Production, assigned Cukor to direct several of RKO's major films, including "What Price Hollywood?" (1932), "A Bill of Divorcement" (1932), "Our Betters" (1933), and "Little Women" (1933). When Selznick moved to MGM in 1933, Cukor followed and directed "Dinner at Eight" (1933) and "David Copperfield" (1935) for Selznick and "Romeo and Juliet" (1936) and "Camille" (1936) for Irving Thalberg.
Document 15: John Greyson: John Greyson (born March 13, 1960) is a Canadian director, writer, video artist, producer and political activist, whose work frequently deals with gay themes. Greyson is also a professor at York University's film school, where he teaches film and video theory, film production and editing.
ground_truth: George Dewey Cukor