Brian Bernardoni is the Official Historian of Wrigley Field, and has been a tour guide at the park since 1998.

Craig Purcell is a journalist originally from Iowa, and is a tour guide at the Field of Dreams Movie Site.

Phil S. Dixon is an author, public speaker, researcher and historian who has been focusing on the Negro Leagues for more than 40 years.

Graig Kreindler is a renowned baseball artist, historian, and researcher.

Mike Miller is one of the world’s leading experts on the career of Shoeless Joe Jackson, and has volunteered as a tour guide at the Shoeless Joe Jackson Museum in Greenville, SC for over a decade.

Dan Wallach is the host of My Baseball History.