Writer Sinclair is a reference to two famous authors, Upton Sinclair and Lewis Sinclair. Upton Sinclair was an American author who wrote over 90 books and other works in several genres, including political and social commentary. He is best known for his 1906 novel The Jungle, which exposed the harsh conditions of the meatpacking industry. Lewis Sinclair was an American novelist, short story writer, and playwright. He is best known for his 1925 novel, Main Street, which depicted small-town life in the Midwest.