Robert T. Mathews (November 21, 1851 – April 17, 1898) was an American right-handed professional baseball pitcher who played in the National Association of Professional Base Ball Players, the National League of Major League Baseball and the American Association for twenty years beginning in the late 1860s. He is credited as being one of the inventors of the spitball pitch, in each of three major leagues.
Robert T. Mathews (November 21, 1851 – April 17, 1898) was an American right-handed professional baseball pitcher who played for twenty years in the National Association of Professional Base Ball Players, the National League of Major League Baseball and the American Association. He is credited with inventing the spitball pitch in three major leagues.