Which author was a major figure in the Saturday Club?

The correct answer is Longfellow, who was indeed a major figure in the Saturday Club, a literary and intellectual circle that met in Cambridge, Massachusetts, primarily during the 19th century. Longfellow was not only a prominent poet but also a well-respected educator and community figure. The Saturday Club included other notable writers and intellectuals of the time, such as Ralph Waldo Emerson and Oliver Wendell Holmes Jr., and it played a critical role in fostering literary discussion and collaboration among its members. Longfellow's contributions to American poetry and literature were significant, making his involvement in such a distinguished group particularly noteworthy.

Other authors listed, like Ernest Hemingway, Mark Twain, and Henry James, were influential in their own right, but their associations and contributions did not align with the Saturday Club, which had a distinctly different focus and time period compared to their literary careers.