John Walter "Duster" Mails (October 1, 1894 – July 5, 1974) born in San Quentin, California, was a pitcher for the Brooklyn Robins (1915–16), Cleveland Indians (1920–22) and St. Louis Cardinals (1925–26).Mails pitched for three pennant winning teams—the 1916 Robins, the 1920 Indians and the 1926 Cardinals.