Are Tracy Chevalier and Thomas Pynchon both novelists?
yes
Title: Arc d'X
Passage: Arc d'X (1993), by Steve Erickson, is an Avantpop novel.  Upon publication in 1993 it received wide attention from other novelists such as Thomas Pynchon, Tom Robbins and William Gibson, and it has been translated into Italian, Japanese and other languages.
Title: Tracy Chevalier
Passage: Tracy Chevalier FRSL (born October 19, 1962) is an American-British historical novelist.  She has written eight novels.  She is best known for her second novel, "Girl with a Pearl Earring", which was adapted as a 2003 film starring Scarlett Johansson and Colin Firth.
Title: Thomas Pynchon
Passage: Thomas Ruggles Pynchon Jr. ( , commonly ; born May 8, 1937) is an American novelist.  A MacArthur Fellow, he is noted for his dense and complex novels.  His fiction and non-fiction writings encompass a vast array of subject matter, genres and themes, including history, music, science, and mathematics.  For "Gravity's Rainbow", Pynchon won the 1974 U.S. National Book Award for Fiction.
Tracy Chevalier Thomas Pynchon