John Thorn

The Commissioner of Baseball named John Thorn the official Baseball Historian for Major League Baseball in 2011. Thorn is the author and editor of numerous baseball books, including "Baseball in the Garden of Eden: The Secret History of the Early Game"; "Total Baseball: The Official Encyclopedia of Major League Baseball"; "Treasures of the Baseball Hall of Fame" and "The Hidden Game of Baseball". Thorn, a longtime member of SABR, served as the senior creative consultant for Ken Burns’ "Baseball" series. (COURTESY PHOTO)