Question: The autobiographical play by Eugene O'Neil was written in 1942, but first published in what year?

Context articles: Look Homeward, Angel
Chapel perilous
Long Day's Journey into Night
February 1956
Godshow
Wonderful Town
Margarete Böhme
White Nights (book)
Something Cloudy, Something Clear
First on the Moon (1970 book)

Look Homeward, Angel: A Story of the Buried Life is a 1929 novel by Thomas Wolfe.
 It is Wolfe's first novel, and is considered a highly autobiographical American coming-of-age story.
 The character of Eugene Gant is generally believed to be a depiction of Wolfe himself.
 The novel covers the span of time from Eugene's birth to the age of 19.
 The setting is the fictional town and state of Altamont, Catawba, a fictionalization of his home town, Asheville, North Carolina.
 Playwright Ketti Frings wrote a theatrical adaptation of Wolfe's work in a 1957 play of the same title.
The term chapel perilous first appeared in Sir Thomas Malory's "Le Morte d'Arthur" (1485) as the setting for an adventure in which sorceress Hellawes unsuccessfully attempts to seduce Sir Lancelot.
 T. S. Eliot used it symbolically in "The Waste Land" (1922).
 Dorothy Hewett took "The Chapel Perilous" as the title for her autobiographical play, in which she uses "the framework of the Arthurian legend, Sir Lancelot, to create a theatrical quest of romantic and epic proportions".
Long Day's Journey into Night is a drama play in four acts written by American playwright Eugene O'Neill in 1941–42 but first published in 1956.
 The play is widely considered to be his "magnum opus" and one of the finest American plays of the 20th century.
 It premiered in Sweden in February 1956 and then opened on Broadway in November 1956, winning the Tony Award for Best Play.
The world première of Eugene O'Neill's semi-autobiographical play "Long Day's Journey into Night" (written in 1942) takes place at the Royal Dramatic Theatre, Stockholm, in a Swedish language production directed by Bengt Ekerot and starring Lars Hanson.
 It would not appear on Broadway until November of the same year.
Godshow is an autobiographical play written and starred by Tim O'Malley.
Wonderful Town is a 1953 musical with book written by Joseph A. Fields and Jerome Chodorov, lyrics by Betty Comden and Adolph Green, and music by Leonard Bernstein.
 The musical tells the story of two sisters who aspire to be a writer and actress respectively, seeking success from their basement apartment in New York City's Greenwich Village.
 It is based on Fields and Chodorov's 1940 play "My Sister Eileen", which in turn originated from autobiographical short stories by Ruth McKenney first published in "The New Yorker" in the late 1930s and later published in book form as "My Sister Eileen".
 Only the last two stories in McKenney's book were used, and they were heavily modified.
Margarete Böhme (8 May 1867 – 23 May 1939) was, arguably, one of the most widely read German writers of the early 20th century.
 Böhme authored 40 novels – as well as short stories, autobiographical sketches, and articles.
 "The Diary of a Lost Girl", first published in 1905 as "Tagebuch einer Verlorenen", is her best known and bestselling book.
 By the end of the 1920s, it had sold more than a million copies, ranking it among the bestselling books of its time.
 One contemporary scholar has called it “Perhaps the most notorious and certainly the commercially most successful autobiographical narrative of the early twentieth century.”
White Nights: the Story of a Prisoner in Russia is an autobiographical memoir by Menachem Begin, the sixth Prime Minister of Israel, describing his imprisonment in the Soviet gulag labour camps during 1940-1942.
 The book was first published in Hebrew in 1957 and has been available in English translation since 1977.
Something Cloudy, Something Clear is an autobiographical play by Tennessee Williams that was originally written in 1941 as a short play titled "The Parade, or Approaching the End of a Summer", which was produced posthumously in Provincetown in 2006.
 In 1962, Williams retitled and expanded "The Parade" into a full-length play that was first produced Off-Off-Broadway in 1981.
 Both versions of the play are set on the wharfs of Provincetown, Massachusetts, and tell the story of a young playwright named August dealing with his unrequited homosexual love for another man.
First on the Moon: A Voyage with Neil Armstrong, Michael Collins and Edwin E. Aldrin, Jr. (ISBN  ) is a book by the crew of the Apollo 11 Moon landing (Neil Armstrong, Michael Collins, Buzz Aldrin) in collaboration with Gene Farmer and Dora Jane Hamblin, first published in 1970.
 It describes the events leading up to and during the Apollo 11 mission, the first manned landing on the Moon.
 It was first published in June 1970 by Little, Brown and Company.