Question: Who is American writer and translator Peter Christopher Sebastian's older brother who is a novelist and poet and wrote "Darconville's Cat"?

Context paragraphs:
J.-H. Rosny jeune: J.-H.  Rosny was the pseudonym of Séraphin Justin François Boex (July 21, 1859 – July 21, 1948), a French author of Belgian origin who, along with his better known older brother J.-H.  Rosny aîné, is considered one of the founding figures of modern science fiction.  Born in Brussels in 1859, until 1909 he wrote together with his older brother Joseph Henri Honoré Boex under the pen name J.-H.  Rosny.  After they ended their collaboration Joseph Boex continued to write under the name J.-H.  Rosny aîné ("Rosny Senior") while Séraphin used "Rosny jeune" ("Rosny Junior").

Mary O'Donoghue: Mary O'Donoghue (born 1975) is an Irish fiction writer, poet, and translator.  She grew up in Co.  Clare, Ireland.  Her debut novel "Before the House Burns" was published in 2010, and is described by Booker Prize-winning Irish novelist Anne Enright as "Electric, real, and utterly modern: this is a voice to welcome and to watch."  Her short stories have been published in the "Georgia Review", the "Dublin Review", "AGNI", "Salamander", "Literary Imagination", "Stinging Fly", the "Irish Times", and elsewhere.  Her poetry collections are "Tulle" (2001) and "Among These Winters" (2007).  She is one of the translators of Irish-language poet Seán Ó Ríordáin; "Selected Poems" appeared from Yale University Press (Margellos World Republic of Letters) in 2014.  Across several years and bilingual volumes, she has collaborated with Louis de Paor on translations of his poetry, most recently "The Brindled Cat and the Nightingale’s Tongue" (Bloodaxe Books, 2014).  Mary O'Donoghue's writing awards include Hennessy/"Sunday Tribune" New Irish Writer; two artist’s fellowships from Massachusetts Cultural Council (2006 and 2012 ); "Irish Times"/ Legends of the Fall prize for short fiction responding to Ireland's economic crisis (2013); and residencies at Vermont Studio Center and Virginia Center for Creative Arts.  She is an associate professor of English in the Arts and Humanities division at Babson College, Massachusetts.

Chris Buckley (footballer): Christopher Sebastian "Chris" Buckley (9 November 1886 – 11 January 1973) was a footballer in the early years of professional football in England, who played at centre half for a variety of clubs including Aston Villa and Arsenal, before later returning to Villa as director and chairman.  He was the younger brother of Frank Buckley, who was also a player and manager of Wolverhampton Wanderers.

Alexander Theroux: Alexander Louis Theroux (born 1939) is an American novelist and poet whose best known novel is perhaps "Darconville’s Cat" (1981) which was selected by Anthony Burgess’s "Ninety-Nine Novels: The Best in English since 1939 – A Personal Choice" in 1984 and in Larry McCaffery’s "20th Century’s Greatest Hits"

Christopher Whyte (writer): Christopher Whyte ("Crìsdean MacIlleBhàin") is a Scottish poet, novelist, translator and critic.  He is a novelist in English, a poet in Scottish Gaelic, the translator into English of Marina Tsvetaeva, Pier Paolo Pasolini and Rainer Maria Rilke, and an innovative and controversial critic of Scottish and international literature.  His work in Gaelic also appears under the name Crìsdean MacIlleBhàin.

Reid Buckley: Fergus Reid Buckley (July 14, 1930 – April 14, 2014) was an American writer, speaker, and educator.  Among his books is a history of his family, "An American Family—The Buckleys" (2008), which primarily focuses on his father, William Frank Buckley, Sr. Reid's brother, William F. Buckley, Jr., is the best known member of the family.  He graduated from Yale University in 1952, where he was a member of Skull and Bones.  He was born in Paris, France, where his father worked in the oil industry.  Buckley's older brother was former New York Conservative United States Senator James L. Buckley, and his nephews were writer Christopher Buckley, and Media Research Center founder L. Brent Bozell III.

Peter Theroux: Peter Christopher Sebastian Theroux (born 1956) is an American writer and translator.  He is part of the creative Theroux family from Boston, Massachusetts.  The younger brother of writers Alexander Theroux and Paul Theroux, during college Peter studied for a year at the University of Cairo.  He became interested in Arabic literature and has made it his life's work.  He has translated numerous works of both historic and chiefly contemporary fiction by Egyptian, Iraqi and Lebanese authors.  In addition, he has written articles and published a travel book, "Sandstorms" (1990), about his extensive travels in the Middle East.

Peter Petrelli: Peter Petrelli, portrayed by Milo Ventimiglia, is a fictional character on the NBC science fiction drama series "Heroes".  He is a hospice nurse-turned-paramedic in his mid-20s with the power to absorb and mimic the powers of other people with special abilities, or powers.  Sensitive and compassionate, the character was initially defined by his complex relationship with his older brother, Nathan.  Since that time, Peter Petrelli has had to deal with the outcomes from the decisions that his abilities force him to make.  In the start of the series, Peter absorbs the ability of a man who is practically a ticking time bomb.  In desperation all the characters in the series race to try and save New York City in fear that Peter will "blow up" the city like a bomb.  Minutes from when he's about to explode Peter's older brother Nathan flies him high above the skyline and saves the people of New York City.

I Know Why the Caged Bird Sings: I Know Why the Caged Bird Sings is a 1969 autobiography about the early years of American writer and poet Maya Angelou.  The first in a seven-volume series, it is a coming-of-age story that illustrates how strength of character and a love of literature can help overcome racism and trauma.  The book begins when three-year-old Maya and her older brother are sent to Stamps, Arkansas, to live with their grandmother and ends when Maya becomes a mother at the age of 16.  In the course of "Caged Bird", Maya transforms from a victim of racism with an inferiority complex into a self-possessed, dignified young woman capable of responding to prejudice.

Christopher Masterson: Christopher Kennedy Masterson (born January 22, 1980) is an American actor and disc jockey known best for his role as Francis on "Malcolm in the Middle".  He is the younger brother of "That '70s Show" cast member Danny Masterson, older brother of "The Walking Dead" cast member Alanna Masterson, and older brother of "Last Man Standing" cast member Jordan Masterson.

Supporting paragraphs: Peter Theroux Alexander Theroux
Answer: Alexander Theroux