Question: Which one of these American author's, Susan Vreeland or Harry Mathews, was responsible for various novels and able to translate French?

Context paragraphs:
Pierre Martory: Pierre Martory (December 1, 1920 – October 5, 1998) was a French poet whose influence on New York School poets was quiet but profound.  His work was admired by Frank O'Hara, James Schuyler, Harry Mathews, and others, and translated extensively by John Ashbery, with whom he shared his life in Paris for nearly a decade.  His work has appeared in many books in both England and the United States, as well as in "The New Yorker" and "Poetry".  Martory’s personal “charm,” the poet Ann Lauterbach once said, “devolved back to the original meaning of ‘spell. ’” However, as Ashbery has noted, “Both the humor and the sadness in his poems are always rendered with an unemphatic clarity that is certainly Mozartian.”

Eliot Rosewater: Eliot Rosewater is a recurring character in the novels of American author Kurt Vonnegut.  He appears throughout various novels as an alcoholic, and a philanthropist who claims to be a volunteer fireman.  He runs the Rosewater Foundation, an organization created to keep the family's money in the family.  He is among the few fans of the novels of Kilgore Trout (another of Vonnegut's creations).

Hervé Le Tellier: Hervé Le Tellier (born 21 April 1957) is a French writer and linguist, and a member of the international literary group Oulipo (Ouvroir de Littérature Potentielle, which translates roughly as "workshop of potential literature").  Other notable members have included Raymond Queneau, Georges Perec, Italo Calvino, Jacques Roubaud, Jean Lescure and Harry Mathews.

Harry Mathews: Harry Mathews (February 14, 1930 – January 25, 2017) was an American writer.  He is the author of various novels, volumes of poetry and short fiction, and essays.  Mathews was also a translator of French.

Emelie Tracy Y. Swett: Emelie Tracy Young Swett Parkhurst (March 9, 1863 – April 21, 1892) was an American poet, author, and editor.  She manifested a strong taste for literature at an early age.  She was a pleasing writer of both prose and verse, and in her literary work was often employed by publishers to translate French and German articles and books.  She was at one time employed as the private secretary of a publishing house, and in this capacity she developed executive abilities.  In 1889, she married John W. Parkhurst, an employee in the Bank of California.

Brush with Fate: Brush with Fate was a made-for-TV film debuted on February 2, 2003, on CBS.  It followed the life of an imaginary painting by Dutch painter Johannes Vermeer as it passes through the hands of various people.  The film was based on "Girl In Hyacinth Blue", a novel by author Susan Vreeland, and starred Glenn Close and Ellen Burstyn.

Locus Solus (journal): Locus Solus was an American journal of experimental poetry and prose that published four issues in 1961 and 1962, one a double issue.  The magazine was edited by the poets John Ashbery, Kenneth Koch, and James Schuyler, all of whom contributed to its four issues.  The content was completely in English but the journal was published in France (in Lans-en-Vercors) by Harry Mathews.

Blue of Noon: Blue of Noon (French: "Le Bleu du Ciel" ) is an erotic novella by Georges Bataille.  Although Bataille completed the work in 1935, it was not published until Jean-Jacques Pauvert did so in 1957.  (Pauvert previously published the writings of the Marquis de Sade.)  Urizen Books published Harry Mathews' English-language translation in 1978.  The book deals with both incest and necrophilia.

Susan Vreeland: Susan Joyce Vreeland (January 20, 1946 – August 23, 2017) was an American author.  Several of her books deal with the relationship between art and fiction.  "The Passion of Artemisia" is a fictionalised investigation of some aspects of the life of Artemisia Gentileschi, while "The Girl in Hyacinth Blue" centres round an imaginary painting by Vermeer.  "The Forest Lover" is a fictionalized account of the life of the Canadian painter Emily Carr.

Laura Duke Condominas: Laura Duke Condominas (also known as Laura Duke, born in Boston April 1951) is the daughter of French artist and film-maker Niki de Saint-Phalle and American novelist Harry Mathews.  As an actress she is most notable for her portrayal of Guinevere in Robert Bresson's film "Lancelot du lac" (1974).

Supporting paragraphs: Susan Vreeland Harry Mathews
Answer: Harry Mathews