Question: Who was a dentist as well as an author, Zane Grey or Thomas Sigismund Stribling?

full_context: Document 1: Spring Storm: Spring Storm is a 1937 play written by American playwright Tennessee Williams. Tennessee Williams wrote "Spring Storm" when he was twenty-six years old, in 1937, while studying as an apprentice. "Spring Storm" received poor reviews in Williams’s playwriting course, and it did not receive its first production until 1995 in Berkeley, California. The European premiere took place at the Royal & Derngate Northampton on 15 October 2009, running alongside "Beyond the Horizon" by Eugene O'Neill. Both productions subsequently transferred to the Royal National Theatre in 2010 to the Cottesloe Theatre. Written and rewritten between 1937 and 1938, this full-length play depicts life and conflicted love in a small Mississippi Delta town during the Great Depression.
Document 2: Zane Grey Cabin: The Zane Grey Cabin on the Rogue River in Oregon is a cabin built in 1926 by Zane Grey (1872–1939), the master author of the American West. Grey used it as a frequent retreat until 1935.
Document 3: Zane Grey Museum: The Zane Grey Museum in Lackawaxen Township, Pennsylvania, United States, is a former residence of the author Zane Grey and is now maintained as a museum and operated by the National Park Service (NPS). It is located on the upper Delaware River and is on the National Register of Historic Places. It contains many photographs, artworks, books, furnishings, and other objects of interest associated with Grey and his family.
Document 4: Lewis Wetzel: Lewis Wetzel (February 24, 1763 -1808) was a frontiersman and Native American fighter who roamed the hills of western Virginia and Ohio. Wetzel County, West Virginia, is named for him. Zane Grey, the great Western novelist, wrote about Wetzel in his books "Spirit of the Border", "Betty Zane", and "The Last Trail". Wetzel is regarded as a hero by many Americans, a lesser-known version of Daniel Boone. He was accused in 1788 of the murder of peaceful Native Americans, but he escaped and there was no trial.
Document 5: Zane: Zane is a surname which was popularized as a given name through the popular American writer Zane Grey. Grey's given name was Pearl but he instead adopted his middle name, from his mother's family name, as a pen name.
Document 6: Thornton Wilder: Thornton Niven Wilder (April 17, 1897 – December 7, 1975) was an American playwright and novelist. He won three Pulitzer Prizes—for the novel "The Bridge of San Luis Rey" and for the two plays "Our Town" and "The Skin of Our Teeth" — and a U.S. National Book Award for the novel "The Eighth Day".
Document 7: Romer Zane Grey: Romer Zane Grey (October 1, 1909 - March 8, 1976) was the eldest son of novelist Zane Grey. Romer was born October 1, 1909 at Lackawaxen, Penn. Zane and Dolly Grey had three children: Romer, Betty, and Loren. Romer was named after an uncle Romer Carl Grey, known as Reddy Grey.
Document 8: Thomas Sigismund Stribling: Thomas Sigismund Stribling (March 4, 1881 – July 8, 1965) was an American writer and lawyer who published under the name T.S. Stribling. He won the Pulitzer Prize for the Novel in 1933 for his novel "The Store".
Document 9: The Store: The Store is a 1932 novel by Thomas Sigismund Stribling.It won the Pulitzer Prize for the Novel in 1933. It is the second book of the "Vaiden" trilogy, comprising "The Forge", "The Store", and "Unfinished Cathedral". All three books in the trilogy have been kept in print since the mid-1980s by the University of Alabama Press.
Document 10: T. S. Eliot: Thomas Stearns Eliot, {'1': ", '2': ", '3': ", '4': "} (26 September 1888 – 4 January 1965) was a British essayist, publisher, playwright, literary and social critic, and "one of the twentieth century's major poets". He moved from his native United States to England in 1914 at the age of 25, settling, working, and marrying there. He eventually became a British subject in 1927 at the age of 39, renouncing his American citizenship.
Document 11: Zane Grey Estate: The Zane Grey Estate is a National Register of Historic Places structure (site #02001187) in Altadena, California. It was placed on the Register in 2002 for its association with author Zane Grey.
Document 12: Louis L'Amour: Louis Dearborn L'Amour ( ; March 22 1908 –June 10 1988) was an American novelist and short story writer. His books consisted primarily of Western novels (though he called his work 'frontier stories'); however, he also wrote historical fiction ("The Walking Drum"), science fiction ("The Haunted Mesa"), non-fiction ("Frontier"), as well as poetry and short-story collections. Many of his stories were made into films and John Wayne once made the dubious assertion that L'Amour was the most interesting man in the world. L'Amour's books remain popular and most have gone through multiple printings. At the time of his death almost all of his 105 existing works (89 novels, 14 short-story collections, and two full-length works of nonfiction) were still in print, and he was considered "one of the world's most popular writers".
Document 13: Thomas Wolfe: Thomas Clayton Wolfe (October 3, 1900 – September 15, 1938) was an American novelist of the early twentieth century.
Document 14: Tennessee Williams: Thomas Lanier "Tennessee" Williams III (March 26, 1911 – February 25, 1983) was an American playwright. Along with Eugene O'Neill and Arthur Miller, he is considered among the three foremost playwrights of 20th-century American drama.
Document 15: Zane Grey: Pearl Zane Grey (January 31, 1872 – October 23, 1939) was an American dentist and author best known for his popular adventure novels and stories associated with the Western genre in literature and the arts; he idealized the American frontier. "Riders of the Purple Sage" (1912) was his best-selling book. In addition to the commercial success of his printed works, they had second lives and continuing influence when adapted as films and television productions. His novels and short stories have been adapted into 112 films, two television episodes, and a television series, "Dick Powell's Zane Grey Theater".
ground_truth: Zane Grey