Question: In 1846 who founded a tailoring shop whose customers included an English actor and director who, along with his contemporaries Ralph Richardson and John Gielgud, dominated the British stage of the mid-20th century?

Context paragraphs:
Ralph Richardson: Sir Ralph David Richardson (19 December 1902 – 10 October 1983) was an English actor who, along with his contemporaries John Gielgud and Laurence Olivier, dominated the British stage of the mid-20th century.  He worked in films throughout most of his career, and played more than sixty cinema roles.  From an artistic but not theatrical background, Richardson had had no thought of a stage career until a production of "Hamlet" in Brighton inspired him to become an actor.  He learned his craft in the 1920s with a touring company and later the Birmingham Repertory Theatre.  In 1931 he joined the Old Vic, playing mostly Shakespearean roles.  He led the company the following season, succeeding Gielgud, who had taught him much about stage technique.  After he left the company, a series of leading roles took him to stardom in the West End and on Broadway.

John Gielgud: Sir Arthur John Gielgud ( ; 14 April 1904 – 21 May 2000) was an English actor and theatre director whose career spanned eight decades.  With Ralph Richardson and Laurence Olivier, he was one of the trio of actors who dominated the British stage for much of the 20th century.  A member of the Terry family theatrical dynasty, he gained his first paid acting work as a junior member of his cousin Phyllis Neilson-Terry's company in 1922.  After studying at the Royal Academy of Dramatic Art he worked in repertory theatre and in the West End before establishing himself at the Old Vic as an exponent of Shakespeare in 1929–31.

Savile Row tailoring: Savile Row tailoring is traditional and modern, men and women's bespoke tailoring that takes place on Savile Row and neighbouring streets in Mayfair, central London.  In 1846, Henry Poole, credited as being the "Founder of Savile Row", opened an entrance to his tailoring premises into No. 32 Savile Row.  The term "bespoke" is understood to have originated in Savile Row when cloth for a suit was said to "be spoken for" by individual customers.  The short street has been termed the "golden mile of tailoring", where customers have included Charles, Prince of Wales, Jude Law, Winston Churchill, Muhammad Ali Jinnah, Laurence Olivier, Duke Ellington, Lord Nelson and Napoleon III.

Harcourt Williams: Ernest George Harcourt Williams (30 March 1880 – 13 December 1957) was an English actor and director.  After early experience in touring companies he established himself as a character actor and director in the West End.  From 1929 to 1934 he was director of The Old Vic theatre company; among the actors he recruited were John Gielgud and Ralph Richardson.  After directing some fifty plays he resigned the directorship of the Old Vic but continued to appear in the company's productions throughout the rest of his career.  He appeared in thirty cinema and television roles during his later years.

Laurence Olivier on stage and screen: Laurence Olivier (1907–1989) was an English actor who, along with his contemporaries Ralph Richardson and John Gielgud, dominated the British stage of the mid-20th century.  He also worked in films throughout his career, playing more than fifty cinema roles.  From 1935 he performed in radio broadcasts and, from 1956, had considerable success in television roles.

N. C. Hunter: Norman Charles Hunter, (18 September 190819 April 1971) was a British playwright whose plays attracted such notable actors to perform them as John Gielgud, Wendy Hiller, Sybil Thorndike, Ralph Richardson, Vanessa Redgrave, Michael Redgrave, and Ingrid Bergman.  His play "A Picture of Autumn" was revived off-Broadway by the Mint Theater Company in 2013.  Hunter's play "A Day by the Sea" will be revived off-Broadway by the Mint Theater Company in 2016.

Laurence Olivier: Laurence Kerr Olivier, Baron Olivier, {'1': ", '2': ", '3': ", '4': "} ( ; 22 May 1907 – 11 July 1989) was an English actor and director who, along with his contemporaries Ralph Richardson and John Gielgud, dominated the British stage of the mid-20th century.  He also worked in films throughout his career, playing more than fifty cinema roles.  Late in his career, he had considerable success in television roles.

Ralph Richardson, roles and awards: Sir Ralph Richardson (1902–1983) was an English actor who appeared on radio, film, television and stage.  Described by "The Guardian" as "indisputably our most poetic actor", and by the director David Ayliff as "a natural actor ... [who] couldn't stop being a perfect actor", Richardson's career lasted over 50 years.  He was—in the words of his biographer, Sheridan Morley—one "of the three great actor knights of the mid-twentieth century", alongside Laurence Olivier and John Gielgud.

Oh! What a Lovely War: Oh!  What a Lovely War is a 1969 British comedy musical film directed by Richard Attenborough (in his directorial debut), with an ensemble cast including Maggie Smith, Dirk Bogarde, John Gielgud, John Mills, Kenneth More, Laurence Olivier, Jack Hawkins, Corin Redgrave, Michael Redgrave, Vanessa Redgrave, Ralph Richardson, Ian Holm, Paul Shelley, Malcolm McFee, Jean-Pierre Cassel, Nanette Newman, Edward Fox, Susannah York, John Clements, Phyllis Calvert and Maurice Roëves.

Reynolds Yater: Reynolds "Renny" Yater (born 1932 in Los Angeles) is a surfboard builder.  He was one of the first commercial surfboard builders of the 1950s.  Yater shaped fiberglass boards in the early 1950s, worked for Hobie in the mid-1950s on balsa boards and in 1957 went to work for Dale Velzy's shop in San Clemente, California shaping balsa boards.  He opened Yater Surfboards in the fall of 1959 on Anacapa Street in Santa Barbara before moving the shop to Summerland, California in 1961.  In 1964 zoning laws changes and in 1965 the shop opened on Gutierrez Street along with a retail surf shop at 401 State Street.  In 1967 the shaping operation moved to Gray Avenue.  The retail shop closed in 1971.  His board designs include the Yater Spoon and Pocket Rocket.  Customers included Joey Cabell, Gordon Clark, Mickey Dora, Philipi Pomar, Kemp Auberg, Bob Cooper, Bruce Brown and John Severson.  Another Yater retail store opened in 1991 at 10 State Street in Santa Barbara and continues in business with Yater's son Lauren at the helm.

Supporting paragraphs: Savile Row tailoring Laurence Olivier
Answer: Henry Poole