Question: A Runaway Girl was a musical written by which British music hall performer?
Context: Norah Blaney (16 July 18937 December 1983), born Norah Mignon Cordwell, was a music hall performer.  She sang the Music Hall song "Oh!  Mr Porter", although the song was made famous by Marie Lloyd. Archie Pitt (1895 – November 12, 1940) was a British music hall performer, showman and talent agent.  He is best known for his marriage to Gracie Fields whose career he managed. Honour Margaret Rosell Santoi Fuller, better known as Jill Summers (8 December 1910 – 11 January 1997), was a British music hall performer and comedian.  Her career in entertainment lasted eighty years and in later life she achieved stardom as Phyllis Pearce, in Granada Television's long-running soap opera "Coronation Street". A Runaway Girl is a musical comedy in two acts written in 1898 by Seymour Hicks and Harry Nicholls.  The composer was Ivan Caryll, with additional music by Lionel Monckton and lyrics by Aubrey Hopwood and Harry Greenbank.  It was produced by George Edwardes at the Gaiety Theatre, London, opening on 21 May 1898 and ran for a very successful 593 performances.  It starred Hicks's wife, Ellaline Terriss and Edmund Payne. Sir Edward Seymour Hicks (30 January 1871 – 6 April 1949), better known as Seymour Hicks, was a British actor, music hall performer, playwright, screenwriter, theatre manager and producer.  He became well known for writing, starring in and producing Edwardian musical comedy.  Beginning in 1913, however, he had a significant film career.  Hicks began in film during the silent era and continued to act in sound films. Carissa Phelps (born September 12, 1976) is a Mexican-American author, attorney, and advocate for sexually exploited runaway children and homeless youth.  She is known as the subject of the award-winning documentary, "Carissa", directed by David Sauvage and produced by Davis Guggenheim, Chad Troutwine, and Jamie McCourt.  The 2008 film revisits her life as a sexually exploited runaway child living on the streets of Fresno, California.  Having been involved in various petty crimes and probation violations, as well as grand theft auto, she was incarcerated at the CK Wakefield Home for Boys, during their pilot program to integrate girls into the facility as an option to sentencing them to the California Youth Authority.  Teaching herself mathematics and working to overcome numerous rapes, sexual exploitation, and substance abuse and addictions, she eventually graduated with an MBA and a law degree from UCLA.  She is the founder of Runaway Girl, Inc., which advocates for runaway and homeless youth, while providing training for organizations to effectively reach out and address homelessness and human trafficking.  In 2012, her life story was told in the book, "Runaway Girl: Escaping Life on the Streets, One Helping Hand at a Time". Sir Edward Seymour Hicks (30 January 1871 – 6 April 1949), better known as Seymour Hicks, was a British actor, music hall performer, playwright, screenwriter, actor-manager and producer.  He became known, early in his career, for writing, starring in and producing Edwardian musical comedy, often together with his famous wife, Ellaline Terriss.  His most famous acting role was that of Ebenezer Scrooge in Charles Dickens's "A Christmas Carol". Peggy Pryde born 19 July 1867, (Baptised as Letitia Matilda on 14 May 1876 in Lambeth London England) – 17 May 1943 in Sydney, New South Wales, Australia) was a British music hall performer of the late 19th and early 20th centuries.  She appeared in Australia's first talking film "Fellers" in 1930. George Mozart (1864–1947) was a British music hall performer, who also appeared in a number of films. Douglas Wakefield (1899–1951) was a British music hall performer and film actor.  He is often credited as Duggie Wakefield.  He appeared in two films with Gracie Fields, playing her brother in the 1933 comedy "This Week of Grace".  In 1940 he starred in an espionage comedy-thriller "Spy for a Day".  He also appeared in Mixed Nuts, a film about chorus girls who got an education.
Answer: Sir Edward Seymour Hicks