In 1910, McCarthy was purchased by the
Pittsburgh Pirates from the South Bend Bronchos of the
Central League. He played with the Pirates until 1915, when he was purchased by the
Chicago Cubs. The following year, he returned to Pittsburgh when the Pirates purchased him from the Cubs. In 1918, McCarthy was traded to the
Kansas City Blues of the
American Association to complete a deal that included
Fritz Mollwitz. McCarthy continued to play in the
minor leagues until 1927. He served as
player-manager of the Blues in 1920, and of the
Springfield Senators of the
Illinois–Indiana–Iowa League in 1926-27. == Personal life ==