Some context: Donald Christopher Barber (born 17 April 1930) is an English jazz musician, best known as a bandleader and trombonist. As well as scoring a UK top twenty trad jazz hit, he helped the careers of many musicians, notably the blues singer Ottilie Patterson, who was at one time his wife, and vocalist/banjoist Lonnie Donegan, whose appearances with Barber triggered the skiffle craze of the mid-1950s and who had his first transatlantic hit, "Rock Island Line", while with Chris Barber's band. His providing an audience for Donegan and, later, Alexis Korner makes Barber a significant figure in the British rhythm and blues and "beat boom" of the 1960s.
The 2017 line up is; Chris Barber and Bob Hunt (trombones); Mike Henry and Pete Rudeforth (trumpets), Bert Brandsma, Nick White and Ian Killoran (clarinets and alto sax, tenor sax, baritone sax). John Watson (drums), John Day (double bass), Joe Farler (banjo & guitar) Pat Halcox, trumpeter with the Chris Barber Band since 31 May 1954, retired after playing his last gig with the Big Chris Barber Band on 16 July 2008. Halcox and Barber were together in the band for 54 years - the longest continuous partnership in the history of jazz, exceeding even that of Duke Ellington and Harry Carney (48 years between 1926 and 1974). Tony Carter (reeds) also left the band at this time. Vic Pitt (double bass) retired in January 2007 after 30 years with the band. His feature duet with the drummers of the day - "Big Noise From Winnetka" was not only a feature of the Barber concerts, but also his time with the Kenny Ball band immediately before. When Amy Roberts joined the band in 2011, she was still a student at Royal Northern College of Music and thus not always able to be present. On several tours Bert Brandsma (reeds) replaced her. Brandsma joined as a permanent member in 2012. At St Luke's, London, on 9 June 2007 Barber appeared in the horn section of Nick Lowe's band during a concert. In 2008 Barber, along with Eric Clapton and others, were involved in a new co-operative record company, Blues Legacy. On 23 July 2009, Barber, Bilk and Ball played a one-off concert at Indigo2 at the O2 in Greenwich. The concert was presented by the British Music Experience. He performed at De Doelen in Rotterdam, the Netherlands, on 12 December 2010.
Did he perform after this?
A: He performed at De Doelen in Rotterdam, the Netherlands, on 12 December 2010.

Some context: Wilson was born on November 26, 1895, in East Dorset, Vermont, the son of Emily (nee Griffith) and Gilman Barrows Wilson. He was born at his parents' home and business, the Mount Aeolus Inn and Tavern. His paternal grandfather, William C. Wilson, was also an alcoholic. William C. Wilson decided to stop drinking alcohol immediately after having a "religious experience" when he was under the influence of psilocybin ( sy-l@-SY-bin) during a "soul searching" hike on Mount Aeolus.
In November 1934, Wilson was visited by old drinking companion Ebby Thacher. Wilson was astounded to find that Thacher had been sober for several weeks under the guidance of the evangelical Christian Oxford Group. Wilson took some interest in the group, but shortly after Thacher's visit, he was again admitted to Towns Hospital to recover from a bout of drinking. This was his fourth and last stay at Towns hospital under Doctor Silkworth's care and he showed signs of delirium tremens. It was while undergoing treatment with The Belladonna Cure that Wilson experienced his "Hot Flash" spiritual conversion and quit drinking. Earlier that evening, Thacher had visited and tried to persuade him to turn himself over to the care of a Christian deity who would liberate him from alcohol. According to Wilson, while lying in bed depressed and despairing, he cried out, "I'll do anything! Anything at all! If there be a God, let Him show Himself!" He then had the sensation of a bright light, a feeling of ecstasy, and a new serenity. He never drank again for the remainder of his life. Wilson described his experience to Dr. Silkworth, who told him, "Something has happened to you I don't understand. But you had better hang on to it". Wilson joined the Oxford Group and tried to help other alcoholics, but succeeded only in keeping sober himself. During a failed business trip to Akron, Ohio, Wilson was tempted to drink again and decided that to remain sober he needed to help another alcoholic. He called phone numbers in a church directory and eventually secured an introduction to Dr. Bob Smith, an alcoholic Oxford Group member. Wilson explained Doctor Silkworth's theory that alcoholics suffer from a physical allergy and a mental obsession. Wilson shared that the only way he was able to stay sober was through having had a spiritual experience. Smith was familiar with the tenets of the Oxford Group and upon hearing Wilson's experience, "began to pursue the spiritual remedy for his malady with a willingness that he had never before been able to muster. After a brief relapse, he sobered, never to drink again up to the moment of his death in 1950". Wilson and Smith began working with other alcoholics. After that summer in Akron, Wilson returned to New York where he began having success helping alcoholics in what they called "a nameless squad of drunks" in an Oxford Group there. In 1938, after about 100 alcoholics in Akron and New York had become sober, the fellowship decided to promote its program of recovery through the publication of a book, for which Wilson was chosen as primary author. The book was given the title Alcoholics Anonymous and included the list of suggested activities for spiritual growth known as the Twelve Steps. The movement itself took on the name of the book. Later Wilson also wrote the Twelve Traditions, a set of spiritual guidelines to ensure the survival of individual AA groups. The AA general service conference of 1955 was a landmark event for Wilson in which he turned over the leadership of the maturing organization to an elected board.
how did he help others with alcohol??
A:
through the publication of a book, for which Wilson was chosen as primary author.