Question: While J. D. Salinger was a writer, what profession did Vachel Lindsay hold?

full_context: Document 1: Kurt Vonnegut: Kurt Vonnegut Jr. ( ; November 11, 1922April 11, 2007) was an American writer. In a career spanning over 50 years, Vonnegut published 14 novels, three short story collections, five plays, and five works of non-fiction. He is most famous for his darkly satirical, best-selling novel "Slaughterhouse-Five" (1969).
Document 2: Henry Wadsworth Longfellow: Henry Wadsworth Longfellow (February 27, 1807 – March 24, 1882) was an American poet and educator whose works include "Paul Revere's Ride", "The Song of Hiawatha", and "Evangeline". He was also the first American to translate Dante Alighieri's "Divine Comedy", and was one of the five Fireside Poets from New England.
Document 3: Abraham Lincoln Walks at Midnight: "Abraham Lincoln Walks at Midnight" is a 1914 poem by American poet Vachel Lindsay. It portrays Abraham Lincoln walking the streets of Springfield, Illinois, stirred from his eternal sleep, a man, who even in death, is burdened by the tragedies of the modern world. At the time the poem was written, Lindsay was oppressed by knowledge of the blood and death exacted by World War I.
Document 4: Vachel Lindsay: Nicholas Vachel Lindsay ( ; November 10, 1879 – December 5, 1931) was an American poet. He is considered a founder of modern "singing poetry," as he referred to it, in which verses are meant to be sung or chanted.
Document 5: Joseph Heller: Joseph Heller (May 1, 1923 – December 12, 1999) was an American author of novels, short stories, plays and screenplays. His best-known work is the novel "Catch-22", a satire on war and bureaucracy, whose title has become a synonym for an absurd or contradictory choice.
Document 6: Vachel Lindsay House: The Vachel Lindsay House is a historic house museum at 603 South 5th Street in Springfield, Illinois. Built in 1848, it was the birthplace and lifelong home of poet Vachel Lindsay (1879-1931). It was declared a National Historic Landmark in 1971. The Illinois Historic Preservation Agency operates the house as a historic house museum and offers tours of the home that emphasize Vachel Lindsay's poetry and art. It is open seasonally.
Document 7: J. D. Salinger: Jerome David Salinger ( ; January 1, 1919 January 27, 2010) was an American writer who is known for his widely-read novel "The Catcher in the Rye". Following his early success publishing short stories and "The Catcher in the Rye", Salinger led a very private life for more than a half-century. He published his final original work in 1965 and gave his last interview in 1980.
Document 8: Indian poetry in English: Indian English Poetry is the oldest form of Indian English Literature. Indian poets writing in English have succeeded to nativize or indianize English in order to reveal typical Indian situations. Henry Louis Vivian Derozio is considered the first poet in the lineage of Indian English poetry followed by Sri Aurobindo, Sarojini Naidu, Michael Madhusudan Dutt, Toru Dutt among others. Among the contemporary Indian English Poets, Nar Deo Sharma occupies important place because of his literary achievements.
Document 9: The Bell Jar: The Bell Jar is the only novel written by the American writer and poet Sylvia Plath. Originally published under the pseudonym "Victoria Lucas" in 1963, the novel is semi-autobiographical, with the names of places and people changed. The book is often regarded as a "roman à clef" since the protagonist's descent into mental illness parallels Plath's own experiences with what may have been clinical depression. Plath died by suicide a month after its first UK publication. The novel was published under Plath's name for the first time in 1967 and was not published in the United States until 1971, in accordance with the wishes of both Plath's husband, Ted Hughes, and her mother. The novel has been translated into nearly a dozen languages. The novel, though dark, is often read in high school English classes.
Document 10: Salinger (film): Salinger is a 2013 documentary film about the reclusive writer J. D. Salinger directed and produced by Shane Salerno. The film tells the story of Salinger's life through interviews with friends, historians, and journalists. The film premiered at the 40th annual Telluride Film Festival and had a second premiere on the opening night of the Toronto International Film Festival.
Document 11: Bryan, Bryan, Bryan, Bryan: "Bryan, Bryan, Bryan, Bryan" is a 1919 poem by American poet Vachel Lindsay. It chronicles William Jennings Bryan's 1896 presidential campaign as seen through the eyes of an idealistic sixteen-year-old, who strongly supported the Democratic Party candidate and was crushed by Bryan's defeat at the hands of the Republican Party.
Document 12: Ogden Nash: Frederic Ogden Nash (August 19, 1902 – May 19, 1971) was an American poet well known for his light verse, of which he wrote over 500 pieces. With his unconventional rhyming schemes, he was declared the country's best-known producer of humorous poetry.
Document 13: Poet laureate: A poet laureate (plural: poets laureate) is a poet officially appointed by a government or conferring institution, who is often expected to compose poems for special events and occasions. The Italians Albertino Mussato and Francesco Petrarca were the first to be crowned poets laureate after the classical age, respectively in 1315 and 1342. In Britain, the term dates from the appointment of Bernard André by Henry VII of England. In modern times, the title may also be conferred by an organization such as the Poetry Foundation, which has a designated Children's Poet Laureate. Other examples are the Pikes Peak Poet Laureate, which is designated by a "Presenting Partners" group from within the community; the Minnesota Poet Laureate chosen by the League of Minnesota Poets (est. 1934); the Northampton Poet Laureate chosen by the Northampton Arts Council, and the Martha's Vineyard Poet Laureate chosen by ten judges representing the Martha's Vineyard Poetry Society.
Document 14: John Updike: John Hoyer Updike (March 18, 1932 – January 27, 2009) was an American novelist, poet, short story writer, art critic, and literary critic. One of only three writers to win the Pulitzer Prize for Fiction more than once (the others were Booth Tarkington and William Faulkner), Updike published more than twenty novels, more than a dozen short-story collections, as well as poetry, art and literary criticism and children's books during his career.
Document 15: David Foster Wallace: David Foster Wallace (February 21, 1962 – September 12, 2008) was an American writer and university instructor of English and creative writing. His novel "Infinite Jest" (1996) was listed by "Time" magazine as one of the hundred best English-language novels published between 1923 and 2005. His last novel, "The Pale King" (2011), was a final selection for the Pulitzer Prize for Fiction in 2012.
ground_truth: poet