Question: Are Marcel Proust and Katherine Neville both critics?

Context paragraphs:
James Grieve (translator/author): James Grieve (born 1934) is an Australian translator of French literature and an author.  His translations have included scientific works, books for children and two volumes of Marcel Proust's "À la recherche du temps perdu" (ANU, 1982 and Penguin, London, 2002).  Grieve's translated second part of Proust's 7-part "Remembrance of Things Past" is the first completely new English translation since the 1920s.  There were six other translators working on the other parts, for this project by Penguin.  Grieve's Penguin translation received positive review from Alain de Botton who remarked: "... if one ends up with a favourite [of the 7 volumes] (mine was James Grieve, who did Volume 2)."  Grieve is also the author of the language study text "Dictionary of Contemporary French Connectors" (Routledge, London, 1996).

Marcel Proust: Valentin Louis Georges Eugène Marcel Proust ( ; ] ; 10 July 1871 – 18 November 1922), known as Marcel Proust, was a French novelist, critic, and essayist best known for his monumental novel "À la recherche du temps perdu" ("In Search of Lost Time"; earlier rendered as "Remembrance of Things Past"), published in seven parts between 1913 and 1927.  He is considered by critics and writers to be one of the most influential authors of the 20th century.

Prix Marcel Proust: The Marcel Proust Prize is a former literary award of France.  Created by the municipal council of Cabourg, in Normandy, in 1972, it was awarded until 1994; the recipient was a work which evoked that of Marcel Proust.  Writers were awarded 5,000 francs for their work.

Katherine Neville, Baroness Hastings: Katherine Neville, Baroness Hastings (1442 – between January and 25 March 1504), was a noblewoman and a member of the powerful Neville family of northern England.  She was one of the six daughters of Richard Neville, 5th Earl of Salisbury, and the sister of military commander Richard Neville, 16th Earl of Warwick, known to history as "Warwick the Kingmaker".

Katherine Neville (author): Katherine Neville (born April 4, 1945) is an American author who writes adventure novels.  Her novels include "The Eight" (1988), "A Calculated Risk" (1992), "The Magic Circle" (1998) and "The Fire" (2008), which is a sequel to "The Eight".

Benjamin Taylor (author): Benjamin Taylor (born 1952) is an American writer whose work has appeared in a number of publications including "Harper's", "Esquire", "Bookforum", "BOMB", the "Los Angeles Times", "Le Monde", "The Georgia Review", "Raritan Quarterly Review", "Threepenny Review", "Salmagundi", "Provincetown Arts" and "The Reading Room".  He is a founding member of the Graduate Writing Program faculty of The New School in New York City, and has also taught at Washington University in St. Louis, the Poetry Center of the 92nd Street Y, Bennington College and Columbia University.  He has served as Secretary of the Board of Trustees of PEN American Center, has been a fellow of the MacDowell Colony and was awarded the Iphigene Ochs Sulzberger Residency at Yaddo.  A Trustee of the Edward F. Albee Foundation, Inc., he is also a Fellow of the New York Institute for the Humanities at New York University and a Guggenheim Fellow for 2012 - 2013.  Taylor's biography of Marcel Proust, "Proust: The Search," was published in October 2015 by Yale University Press as part of its newly launched Yale Jewish Lives series.

Proust and Signs: Proust and Signs (French: "Marcel Proust et les signes" ) is a 1964 book by Gilles Deleuze, in which the author explores the system of signs within the work of the celebrated French novelist Marcel Proust.  It was translated into English by Richard Howard.

Remembrance of Things Past (play): Remembrance of Things Past is the 2000 collaborative stage adaptation by Harold Pinter and director Di Trevis of Harold Pinter's as-yet unproduced "The Proust Screenplay" (1977), a screen adaptation of "À la recherche du temps perdu", the seven-volume novel by Marcel Proust.

Proust Was a Neuroscientist: Proust Was a Neuroscientist is a non-fiction book written by Jonah Lehrer, first published in 2007.  In it, Lehrer argues that many 20th and 21st-century discoveries of neuroscience are actually re-discoveries of insights made earlier by various artists, including Gertrude Stein, Walt Whitman, Paul Cézanne, Igor Stravinsky, and, as alluded to in the title, Marcel Proust.

Jean-Yves Tadié: Jean-Yves Tadié (born 1936) is a French writer, specializing in Marcel Proust.  His 800-page biography of Proust was well-received, asserted by Edmund White in his own book on Proust to be the best work of its kind.  Briefly a professor in the Faculty of Medieval and Modern Languages, University of Oxford, Tadié was then, until his retirement, a professor at the Paris-Sorbonne University (Paris IV) and director of the collections "Classical Folio" and "Theatre Folio".

Supporting paragraphs: Marcel Proust Katherine Neville (author)
Answer: no