Question: Which writer was a member of the Beat Generation, Allen Ginsberg or Tim O'Brien?

Context paragraphs:
Howl and Other Poems: Howl and Other Poems is a collection of poetry by Allen Ginsberg published November 1, 1956.  It contains Ginsberg's most famous poem, "Howl", which is considered to be one of the principal works of the Beat Generation as well as "A Supermarket in California", "Transcription of Organ Music", "Sunflower Sutra", "America", "In the Baggage Room at Greyhound", and some of his earlier works.  For printing the collection, the publisher Lawrence Ferlinghetti, another well-known poet, was arrested and charged with obscenity.  On October 3, 1957, Judge Clayton W. Horn found Ferlinghetti not guilty of the obscenity charge, and 5,000 more copies of the text were printed to meet the public demand, which had risen in response to the publicity surrounding the trial.  "Howl and Other Poems" contains two of the most well-known poems from the Beat Generation, "Howl" and "A Supermarket in California", which have been reprinted in other collections, including the "Norton Anthology of American Literature".

Tim O'Brien (author): William Timothy "Tim" O'Brien (born October 1, 1946) is an American novelist.  He best known for his "The Things They Carried" (1990), a collection of linked short stories.  These semi-autobiographical stories were inspired by O'Brien's experiences in the Vietnam War.  In 2010 the "New York Times" described O'Brien's book as a Vietnam classic.  In addition, he is known for his war novel, "Going After Cacciato" (1978), also about wartime Vietnam, and later novels about postwar lives of veterans.

Allen Ginsberg: Irwin Allen Ginsberg ( ; June 3, 1926 – April 5, 1997) was an American poet.  He is considered to be one of the leading figures of both the Beat Generation during the 1950s and the counterculture that soon followed.  He vigorously opposed militarism, economic materialism and sexual repression and was known as embodying various aspects of this counterculture, such as his views on drugs, hostility to bureaucracy and openness to Eastern religions.  He was one of many influential American writers of his time known as the Beat Generation, which included famous writers such as Jack Kerouac and William S. Burroughs.

Mark Van Doren: Mark Van Doren (June 13, 1894 – December 10, 1972) was an American poet, writer and critic.  He was a scholar and a professor of English at Columbia University for nearly 40 years, where he inspired a generation of influential writers and thinkers including Thomas Merton, Robert Lax, John Berryman, Whittaker Chambers, and Beat Generation writers such as Allen Ginsberg and Jack Kerouac.  He was literary editor of "The Nation", in New York City (1924–28), and its film critic, 1935 to 1938.

Kerouac: Kicks Joy Darkness: Kerouac: Kicks Joy Darkness is a 1997 spoken word tribute album featuring late Beat Generation writer Jack Kerouac's work performed by various artists.  Notable performers include: Michael Stipe, Allen Ginsberg, Hunter S. Thompson, Johnny Depp, and Patti Smith.  Ginsberg's performance of "The Brooklyn Bridge Blues" is missing the final tenth chorus.  This was due to a faxing machine error which stuck the last pages together when Ginsberg was faxed the lyrics.  The final chorus is read by Eric Andersen instead, recorded on a DAT recorder from the Brooklyn Bridge.

John Clellon Holmes: John Clellon Holmes (March 12, 1926, Holyoke, Massachusetts – March 30, 1988, Middletown, Connecticut) was an American author, poet and professor, best known for his 1952 novel "Go".  Considered the first "Beat" novel, "Go" depicted events in his life with his friends Jack Kerouac, Neal Cassady and Allen Ginsberg.  He was often referred to as the "quiet Beat" and was one of Kerouac's closest friends.  Holmes also wrote what is considered the definitive jazz novel of the Beat Generation, "The Horn".

Life and Times of Allen Ginsberg: The Life and Times of Allen Ginsberg is a 1993 film by Jerry Aronson chronicling the poet Allen Ginsberg's life from his birth and early childhood to his thoughts about death at the age of 66.  The film has been completed and released a number of times due to changing technologies and world events.  The first release of the film was in 1993 at the Sundance Film Festival after which it enjoyed an international festival run and USA theatrical run.  At the time, Ginsberg was still alive.  When Aronson showed him the film the poet is reported to have nodded his head thoughtfully and said, "So, that's Allen Ginsberg."

Carolyn Cassady: Carolyn Elizabeth Robinson Cassady (April 28, 1923 – September 20, 2013) was an American writer and associated with the Beat Generation through her marriage to Neal Cassady and her friendships with Jack Kerouac, Allen Ginsberg, and other prominent Beat figures.  She became a frequent character in the works of Jack Kerouac.

Ron Loewinsohn: Born in Iloilo, Philippines, Loewinsohn and his family relocated Los Angeles in the United States in 1945.  They later lived in The Bronx and then settled in San Francisco, where he lived until 1967.  Loewinsohn credits this proximity to North Beach with his own development as a poet: "I graduated from Abraham Lincoln High School in 1955, with the Beat generation happening all around me.  I met all of the principals, heard Ginsberg, Snyder, Whalen and McClure read in Berkeley in April, 1956, and continued to write, mostly poetry, in that vernacular and (I thought) oracular mode."  Loewinsohn then traveled, married in 1957, and worked as a lithographer for 12 years.  In 1959, he published his first collection of poetry, "Watermelons" which contained an introduction by Allen Ginsberg and a prefatory letter by William Carlos Williams.  He also co-edited the little magazine "Change" with Richard Brautigan.  The poets who were most influential on his work included William Carlos Williams, Allen Ginsberg, Robert Duncan, Jack Spicer, Richard Brautigan, Philip Whalen, Gary Snyder, Charles Olson, Robert Creeley, Denise Levertov.

Tangerinn: The Tangerinn is a bar in Tangier, Morocco, a place of nostalgia for fans of beat generation or beatnik poets.  The bar is adjoined to the Hotel El Muniria where author William S. Burroughs wrote his famous novel Naked Lunch in room #9.  Pictures of beat generation poets such as Allen Ginsberg and Jack Kerouac hang on the walls.

Supporting paragraphs: Allen Ginsberg Tim O'Brien (author)
Answer: Allen Ginsberg