Question: Who was the sibling of the singer who performed For the Duration?

full_context: Document 1: Dedicated to Nelson: Dedicated to Nelson is a 1996 studio album by American jazz singer Rosemary Clooney, dedicated to the arranger Nelson Riddle. Clooney's television show from 1956-57 featured arrangements by Riddle, and a selection of those original Riddle arrangements are presented here, performed by a big band. Arrangers Eddie Karam and David Berger assisted with expanding arrangements that had been shorter in their original television show incarnations, and with transcribing the arrangements (the sheet music of which had not been preserved) from the recorded television audio.
Document 2: Audrey Hepburn: Despite the insistence from gossip columns that their marriage would not last, Hepburn claimed that she and Ferrer were inseparable and happy together, though she admitted that he had a bad temper. Ferrer was rumoured to be too controlling, and had been referred to by others as being her "Svengali" – an accusation that Hepburn laughed off. William Holden was quoted as saying, "I think Audrey allows Mel to think he influences her." After a 14-year marriage, the couple divorced in 1968. Hepburn met her second husband, Italian psychiatrist Andrea Dotti, on a Mediterranean cruise with friends in June 1968. She believed she would have more children and possibly stop working. They married on 18 January 1969, and their son Luca Andrea Dotti, was born on 8 February 1970. While pregnant with Luca in 1969, Hepburn was more careful, resting for months before delivering the baby via caesarean section. She wanted to have a third child, but had another miscarriage in 1974. Dotti was unfaithful and she had a romantic relationship with actor Ben Gazzara during the filming of the 1979 movie Bloodline. The Dotti-Hepburn marriage lasted thirteen years and was dissolved in 1982.From 1980 until her death, Hepburn was in a relationship with Dutch actor Robert Wolders, the widower of actress Merle Oberon. She had met Wolders through a friend during the later years of her second marriage. In 1989, she called the nine years she had spent with him the happiest years of her life, and stated that she considered them married, just not officially.
Document 3: Betty Clooney: Betty Clooney (April 12, 1931 – August 5, 1976) was an American singer, TV presenter and pioneer who briefly rose to fame in the 1950s with sister Rosemary Clooney. She led a very brief solo career, with songs like "Kiki" and "You're All I See". She married actor and musician Pupi Campo in 1955, and they had four children.
Document 4: The Glenn Miller Story: The film follows big band leader Glenn Miller (1904 -- 1944) (James Stewart) from his early days in the music business in 1929 through to his 1944 death when the airplane he was flying in was lost over the English Channel during World War II. Prominent placement in the film is given to Miller's courtship and marriage to Helen Burger (June Allyson), and various cameos by actual musicians who were colleagues of Miller.
Document 5: George Fierstone: Fierstone played with a traveling revue in 1931, then played in London with such bandleaders as Bert Ambrose, Harry Roy, Sid Millward (1938), Frank Weir (1944), and Harry Hayes (1944–46). During this time he also did copious work as a studio musician and played in the Heralds of Swing in 1939. He worked in an RAF dance band during World War II, and after the war's end this ensemble performed and recorded as The Skyrockets from 1946 to 1953, accompanying Ella Fitzgerald and Frank Sinatra among others. He continued to work freelance into the 1980s.
Document 6: Betty Curtis: The song "Al di là" performed by her with Luciano Tajoli won the Sanremo Music Festival in 1961. Betty Curtis represented Italy in the Eurovision Song Contest in 1961 with her San Remo winning song, which tied for fifth in Cannes.
Document 7: For the Duration: For the Duration is a 1991 album by Rosemary Clooney, of songs popular during World War II. Clooney is accompanied by her usual small jazz group featuring Warren Vaché Jr., Scott Hamilton, and John Oddo, plus a string section.
Document 8: Betty Draper: During Episode 3, Betty and Don attend a country club party hosted by Roger Sterling and his new wife, Jane Siegel Sterling, where Betty meets Henry Francis, who is later revealed to be an advisor to then - New York governor Nelson A. Rockefeller. Henry is infatuated with Betty, and though she seems reluctant to return his feelings at first, as the season progresses, their affair intensifies. Betty eventually ends it, feeling guilty.
Document 9: A cappella: In July 1943, as a result of the American Federation of Musicians boycott of US recording studios, the a cappella vocal group The Song Spinners had a best-seller with "Comin' In On A Wing And A Prayer". In the 1950s several recording groups, notably The Hi-Los and the Four Freshmen, introduced complex jazz harmonies to a cappella performances. The King's Singers are credited with promoting interest in small-group a cappella performances in the 1960s. In 1983 an a cappella group known as The Flying Pickets had a Christmas 'number one' in the UK with a cover of Yazoo's (known in the US as Yaz) "Only You". A cappella music attained renewed prominence from the late 1980s onward, spurred by the success of Top 40 recordings by artists such as The Manhattan Transfer, Bobby McFerrin, Huey Lewis and the News, All-4-One, The Nylons, Backstreet Boys and Boyz II Men.[citation needed]
Document 10: Ruth Donnelly: Though she made her first film appearance in 1913, her Hollywood career began in earnest in 1931 and lasted until 1957. In her films she often played the wife of Guy Kibbee ("Footlight Parade", "Wonder Bar", "Mr. Smith Goes to Washington"). Among her roles was the part of Sister Michael in "The Bells of St. Mary's", starring Bing Crosby and Ingrid Bergman. Years after her final film role, she returned to the stage, understudying Patsy Kelly in the Broadway revival of "No No Nanette" with old co-star Ruby Keeler and later appearing in the touring production starring Don Ameche and Evelyn Keyes.
Document 11: Sentimental Journey: The Girl Singer and Her New Big Band: Sentimental Journey: The Girl Singer and Her New Big Band is a 2001 album by Rosemary Clooney. This was Clooney's last studio recording. Clooney sings on the album with Big Kahuna and the Copa Cat Pack, a 12-piece swing band led by musician Matt Catingub. Clooney's longtime musical director John Oddo arranged and conducted the music. Clooney and Big Kahuna and the Copa Cat Pack recorded the album following a lengthy performance run at New York's Regency Hotel.
Document 12: Eddie Locke: Eddie Locke was a part of the fertile and vibrant Detroit jazz scene during the 1940s and 1950s, which brought forth many great musicians including the Jones brothers (Hank, Thad, and Elvin), Kenny Burrell, Lucky Thompson, Tommy Flanagan, Barry Harris, and so many others. He eventually formed a variety act with drummer Oliver Jackson called Bop & Locke which played the Apollo Theater. He moved to New York City in 1954, and worked there with Dick Wellstood, Tony Parenti, Red Allen, Willie "The Lion" Smith, and Teddy Wilson amongst others. During this time he came under the tutelage of the great Jo Jones, and eventually became known as a driving and swinging drummer who kept solid time and supported the soloist. During the late 1950s he formed two of his most fruitful musical relationships, one with Roy Eldridge, and the other with Coleman Hawkins. His recording debut came with Eldridge in 1959 on "On The Town". He later became a member of the Coleman Hawkins Quartet in the 1960s along with pianist Tommy Flanagan and bassist Major Holley. That group made many fine records including the exquisite album "Today and Now", in 1963. Throughout the 1970s, he played with Roy Eldridge at Jimmy Ryan's in Manhattan, and wound out his career freelancing, as well as teaching youngsters at the Trevor Day School on Manhattan's upper west side.
Document 13: Claudia Mori: Claudia Mori (born Claudia Moroni, Rome, 12 February 1944), is an Italian actress, singer, television producer, and wife of the singer Adriano Celentano.
Document 14: Rosemary Clooney Sings the Lyrics of Ira Gershwin: Rosemary Clooney Sings the Lyrics of Ira Gershwin is a 1979 album by Rosemary Clooney, of songs with lyrics by Ira Gershwin.
Document 15: Betty Kaunda: Betty Kaunda, born Beatrice Kaweche Banda (17 November 1928 – 18 September 2012), was the wife of Zambia's first president Kenneth Kaunda, and the First Lady of Zambia from 1964 to 1991. She was locally called Mother of Zambia. Betty was born on 17 November 1928 to Kaweche Banda and Milika Sakala Banda at Mpika. She had her early education at Mbereshi Girls, underwent training at Mindolo Ecumenical Foundation’s Women’s programme and worked as a teacher in Mufulira. Betty was married to Dr. Kenneth Kaunda in 1946, who was involved in freedom struggle at the time and later went on to become the first President of independent Zambia in 1964. Betty was the strength behind Dr. Kuanda all through their 66 years of relationship.
ground_truth: Betty Clooney
sub_queries: Whose performance is For the Duration? Answer: Rosemary Clooney
Rosemary Clooney >> sibling Answer: Betty Clooney