William Sydney Porter, better known by his pen name O. Henry, was an American short story writer. O. Henry's stories frequently have surprise endings. In his day he was called the American answer to Guy de Maupassant. While both authors wrote plot twist endings, Robert William Chambers (May 26, 1865 December 16, 1933) was an American artist and fiction writer, best known for his book of short stories titled The King in Yellow, published in 1895. Edith Wharton was an American novelist, short story writer, playwright, and designer. Wharton drew upon her insider's knowledge of the upper class New York "aristocracy" to realistically portray the lives and morals of the Gilded Age. Willa Sibert Cather was an American writer who achieved recognition for her novels of frontier life on the Great Plains. Algernon Henry Blackwood, (14 March 1869 10 December 1951) was an English broadcasting narrator, journalist, novelist and short story writer, and among the most prolific ghost story writers in the history of the genre. James Fenimore Cooper (September 15, 1789 September 14, 1851) was an American writer of the first half of the 19th century. His historical romances draw a picture of frontier and American Indian life in the early American days which created a unique form of American literature.