Question: What occupation did Raoul Walsh and Roy Rowland share?

full_context: Document 1: William A. Wellman: William Augustus Wellman (February 29, 1896 – December 9, 1975) was an American film director notable for his work in crime, adventure and action genre films, often focusing on aviation themes, a particular passion. He also directed several well-regarded satirical comedies. Beginning his film career as an actor, he went on to direct over 80 films, at times co-credited as producer and consultant. In 1927, Wellman directed "Wings", which became the first film to win an Academy Award for Best Picture at the 1st Academy Awards ceremony.
Document 2: George Roy Hill: George Roy Hill (December 20, 1921 – December 27, 2002) was an American film director. He is most noted for directing such films as "Butch Cassidy and the Sundance Kid" (1969) and "The Sting" (1973), which both starred the acting duo Paul Newman and Robert Redford.
Document 3: Walter Huston: Walter Thomas Huston ( ; born Walter Thomas Huston; April 5, 1883 – April 7, 1950) was a Canadian-born American actor and singer. Huston won the Academy Award for Best Supporting Actor for his role in "The Treasure of the Sierra Madre", directed by his son John Huston. He was the grandfather of Pablo Huston, Walter Anthony (Tony) Huston, actress Anjelica Huston, Danny Huston, and Allegra Huston, as well as the great-grandfather of actor Jack Huston.
Document 4: Robert Evans: Robert Evans (born June 29, 1930) is an American film producer and former studio executive, best known for his work on "Rosemary's Baby", "Love Story", "The Godfather" and "Chinatown".
Document 5: Roy Rowland (film director): Roy Rowland (December 31, 1910 – June 29, 1995) was an American film director. The New York-born director helmed a number of films in the 1950s and 1960s including "Our Vines Have Tender Grapes", "Meet Me in Las Vegas", "Rogue Cop", "The 5000 Fingers of Doctor T" and "The Girl Hunters". Rowland married Ruth Cummings, the niece of Louis B. Mayer and sister of Jack Cummings (MGM producer/director). They had one son, Steve Rowland, born in 1932, who later became a music producer in the UK, and has recently published his memoir "Hollywood Heat".
Document 6: Warner LeRoy: Warner LeRoy (March 3, 1935 – February 22, 2001), was a New York businessman. LeRoy was the son of film producer-director Mervyn LeRoy and Mervyn's second wife, Doris Warner, and was the grandson of Harry Warner, one of the founders of Warner Bros. and a major contributor to the development of the film industry.
Document 7: Dennis Rowland: Dennis Rowland is a jazz vocalist born and raised in Detroit. Having grown up in a household of jazz enthusiasts, Rowland developed an appreciation for Jazz music at an early age. At the age of five or six Rowland heard the vocals of Joe Williams of the Count Basie Orchestra, which has influenced his approach to singing ever since. Rowland's voice is rich and deep, and throughout the early 1970s, Rowland worked Detroit's local jazz and acting scene. In 1977 Rowland was hired by Count Basie as a vocalist on his tours, filling the same role his idols Joe Williams and Jimmy Rushing had occupied for so many years. For Rowland, it was a dream come true and he would tour with Basie for the following seven years. During his time with Basie, Rowland had the chance to share the stage with such icons as Sarah Vaughan, Ella Fitzgerald and Tony Bennett. Rowland was seen recently as Jimmy Baker in the film "Real Gone Cat" by film director Robert Sucato. He currently resides and performs regularly in Phoenix, Arizona.
Document 8: Dark Command: Dark Command is a 1940 Western film starring Claire Trevor, John Wayne and Walter Pidgeon loosely based on Quantrill's Raiders during the American Civil War. Directed by Raoul Walsh from the novel by W.R. Burnett, "Dark Command" is the only film in which western icons John Wayne and Roy Rogers appear together, and was the only film Wayne and Raoul Walsh made together since Walsh discovered Wayne working as a prop mover, renamed him, and gave him his first leading role in the widescreen western "The Big Trail" a decade before.
Document 9: Walter Walsh: Colonel Walter Rudolph Walsh (May 4, 1907 – April 29, 2014) was an FBI agent, USMC shooting instructor and Olympic shooter. Walsh joined the FBI in 1934, serving during the Public enemy era, and was involved in several high-profile FBI cases, including the capture of Arthur Barker and the killing of Al Brady. He served in the Pacific theatre during World War II with the Marine Corps and, after a brief return to the FBI, served as a shooting instructor with the Marine Corps until his retirement in the 1970s.
Document 10: Raoul Walsh: Raoul A. Walsh (March 11, 1887December 31, 1980) was an American film director, actor, founding member of the Academy of Motion Picture Arts and Sciences (AMPAS) and the brother of the silent screen actor George Walsh. He was known for portraying John Wilkes Booth in the silent classic "The Birth of a Nation" (1915) and for directing such films as "The Big Trail" (1930), starring John Wayne, "High Sierra" (1941), starring Ida Lupino and Humphrey Bogart; and "White Heat" (1949), starring James Cagney and Edmond O'Brien. He directed his last film in 1964.
Document 11: Roy William Neill: Roy William Neill (4 September 1887 – 14 December 1946) was an English film director best known for directing the last eleven of the fourteen Sherlock Holmes films starring Basil Rathbone and Nigel Bruce, made between 1943 and 1946 and released by Universal Studios.
Document 12: Ralph Ince: Ralph Ince (January 16, 1887 – April 10, 1937) was an American pioneer film actor, director and screenwriter whose career began near the dawn of the silent film era. Ralph Ince was the brother of John Ince and Thomas H. Ince.
Document 13: Rowland Brown: Rowland Brown (November 6, 1900 – May 6, 1963), born Chauncey Rowland Brown in Canton, Ohio, was an American screenwriter and film director, whose career as a director ended in the early 1930s after he started many more films than he finished. He walked out of "State's Attorney" (1932), starring John Barrymore. He was abruptly replaced as director of "The Scarlet Pimpernel". As a writer, he was credited with twenty or so films including two Academy Award nominations, one in the 11th Academy Awards for Best Original Story "Angels with Dirty Faces" and another in the 4th Academy Awards for "Doorway to Hell".
Document 14: John Walsh (filmmaker): Film Maker John Walsh was born in London and is founder of film company Walsh Bros Ltd. His film work on subjects such as social mobility and social justice have brought him many awards including two BAFTA nominations. His company Walsh Bros Ltd. was ranked in the Production 100, a ranking of the top 100 independent film companies in the UK, by Televisual in 2010, 2011 and 2012.
Document 15: Steve Rowland (record producer): Steve Rowland (born Stephen Jacob Rowland, 3 September 1932, Los Angeles, California, United States) is an American singer, columnist, record producer and actor. He grew up in Beverly Hills and now lives in Palm Springs, California. His father is film director Roy Rowland, his mother Ruth was a writer, whilst Louis B. Mayer was her uncle.
ground_truth: film director