Fred Mustard Stewart (September 17, 1932 – February 7, 2007) was an American novelist. His most popular books were The Mephisto Waltz (1969), adapted for the 1971 film of the same name starring Alan Alda; Six Weeks (1976), made into a 1982 film starring Mary Tyler Moore; Century, a New York Times best-seller in 1981; and Ellis Island (1983), which became a CBS mini-series in 1984. Stewart attended the Lawrenceville School in New Jersey, class of 1950. He graduated from Princeton University in 1954, where he was a member of the Colonial Club. He originally planned to be a concert pianist, and studied with Eduard Steuermann at the Juilliard School.