John A. Thorn (born April 17, 1947) is a German-born sports historian, author, publisher, and cultural commentator. Since March 1, 2011, he has been the Official Baseball Historian for Major League Baseball.
John A. Thorn (born April 17, 1947) is a German-born sports historian, author, publisher, and cultural commentator. Since March 1, 2011, he has been the Official Baseball Historian for Major League Baseball. (en)