John A. Greenig (1848 – July 28, 1913), was a professional baseball player who played pitcher in the Major Leagues for the Washington Nationals of the National League on May 9, 1888.
John A. Greenig (1848 – July 28, 1913), was a professional baseball player who played pitcher in the Major Leagues for the Washington Nationals of the National League on May 9, 1888. (en)