Question: What is the name of the person who helped work on Les Sylphides and past away 22 August 1942?

Context paragraphs:
Michel Fokine: Michael Fokine (a French transliteration Michel Fokine; English transliteration Mikhail Fokin; Russian: Михаи́л Миха́йлович Фо́кин , "Mikhaíl Mikháylovich Fokín") (23 April [O.S. 11 April] 1880 – 22 August 1942) was a groundbreaking Russian choreographer and dancer.

Donald Clarke (GC): Apprentice Donald Owen Clarke (5 March 1923 – 9 August 1942) of the Merchant Navy was posthumously awarded the George Cross for his heroism on 8 August 1942.  Sailing alone, his motor tanker, the San Emiliano, was torpedoed and sunk by U.155 in the central Atlantic, south east of Trinidad.  The ship was engulfed in flames but despite being so badly burned that he died the next day of his wounds, he helped save other severely burned victims by rowing a lifeboat clear of the stricken tanker.  He rowed the lifeboat, the only one to survive the sinking, for two hours despite his hands being so badly burned they had to be cut away from the oars as his flesh had stuck to them.  Lying at the bottom of the boat, as they waited for rescue, he sang to keep up the spirits of the other men.

Vietnam (band): Vietnam is a rock, post-punk and new wave band from Atlanta, Georgia on Scared Records.  Vietnam first appeared at the dawn of a new decade—the 80's, and ushered in a fresh era of music to the Atlanta new wave scene.  Embraced by the early 80's cavalcade of Athens bands such as R.E.M., Pylon, Method Actors, Love Tractor, etc., Vietnam wowed the patrons of the legendary 688 club, 40 Watt club, and the Agora Ballroom.  Their first performance was opening for Public Image Ltd. in April 1980, and the next year they played the Noise Fest in New York, appearing on the ZG compilation release of the same name along with Sonic Youth, Glenn Branca, Y Pants and others.  They released their first full-length album on Scared Records in 2004, "Past Away".

Les biches: Les biches (] , "The Hinds" or "The Little Darlings") is a ballet choreographed by Bronislava Nijinska to music by Francis Poulenc, premiered by the Ballets Russes on 6 January 1924.  Some consider this piece a milestone in ballet history.  The composer, who was at the time relatively unknown, was asked by Serge Diaghilev to write a piece based on Glazunov's "Les Sylphides", written seventeen years earlier.  Poulenc, however, chose to base his work on the paintings of Watteau that depicted Louis XV and various women in his "Parc aux biches".  The word "biche" is usually translated as "doe," an adult female deer.  "Does" was used as a slang for coquettish women.  Poulenc described his work as a "contemporary drawing room party suffused with an atmosphere of wantonness, which you sense if you are corrupted, but of which an innocent-minded girl would not be conscious."

Pedro Romeiras: Pedro Romeiras (born 3 July 1961 in Lisbon) started his career as a soloist with the National Ballet of Portugal after finishing ballet studies at the Royal Ballet School.  He is a gold medal winner of the "II Prix Français de la Danse 1982" and won a National Globe Award as best dancer of 1982.  Romeiras has danced many glamorous principal roles of classical repertoire ballets such as "Siegfried" in the full length version of Swan Lake, "Basilio" in Don Quixote, "Jean de Brienne" in Raymonda, "Romeo" in Romeo and Juliet, "The Poet" in Les Sylphides, and many others.  Romeiras has worked and been a guest at the Dutch National Ballet and Ballet D'el Teatro Municipal as a dancer, ballet master, and choreographer.

Stephan Rittau: Stephan Rittau (27 December 1891 – 22 August 1942) was a general in the Wehrmacht of Nazi Germany during World War II.  He was a recipient of the Knight's Cross of the Iron Cross.  Rittau was killed on 22 August 1942 in Rzhev, Soviet Union.

USS Delphinus (AF-24): USS Delphinus (AF-24) was built in 1915 as  by Workman Clark and Co., Ltd., Belfast, Northern Ireland; acquired by the U.S. Navy 11 August 1942; and commissioned the same day as "San Mateo", Lieutenant O. M. Mikkelsen, USNR, in command.  She was assigned the name "Delphinus" on 22 August 1942.

Roy Douglas: Richard Roy Douglas (12 December 1907 – 23 March 2015), better known as Roy Douglas, was a British composer, pianist and arranger.  He worked as musical assistant to Ralph Vaughan Williams, William Walton, and Richard Addinsell, made well-known orchestrations of works such as "Les Sylphides" (based on piano pieces by Chopin) and Addinsell's "Warsaw Concerto", and wrote a quantity of original music.

Alexandra Ballet: The Alexandra Ballet is a pre-professional ballet company in St. Louis, Missouri, founded in 1949, that cultivates top dance talent.  The company regularly performs classical ballets including "A Midsummer Night’s Dream", "Pas de Quatre", "Les Sylphides", and an annual performance of "The Nutcracker".  Many guest choreographers have worked with Alexandra Ballet including Marek Cholewa, Petrus Bosman, and Kennet Oberly.

Les Sylphides: Les Sylphides (] ) is a short, non-narrative "ballet blanc".  Its original choreography was by Michel Fokine, with music by Frédéric Chopin orchestrated by Alexander Glazunov.  Glazunov had already set some of the music in 1892 as a purely orchestral suite, under the title Chopiniana, Op. 46.  In that form it was introduced to the public in December 1893, conducted by Nikolai Rimsky-Korsakov.

Supporting paragraphs: Les Sylphides Michel Fokine
Answer: Michael Fokine