Perry Barber has been a professional and amateur baseball umpire since 1981.

Bobby Richardson is a Yankees legend who played 2B for the team from 1955-1966.

Alex Cheremeteff is a writer, researcher, and historian who is an expert on the Philadelphia Athletics.

Shawn Herne is the Executive Director of the Babe Ruth Birthplace and Museum in Baltimore, Maryland.

Marjorie Adams’ great-grandfather, Doc Adams, wrote The Laws of Base Ball in 1857 which set many of the primary rules of the sport which are still followed to this day. He also invented the position of Shortstop during his playing career.

Lester Erwin is the former owner of “Black Betsy,” Shoeless Joe Jackson’s most famous bat. As a relative of Joe and Katie Jackson, many of the pieces still in his collection came straight from the source.

Tim Carroll is a world-renowned baseball card pop artist who has his works displayed in museums across the country, including at the Baseball Hall of Fame in Cooperstown.

Warren Brown was the Bat Boy for the “Big Red Machine” Cincinnati Reds from 1970-1972.

Andy Brown is an award-winning British artist who has traveled the world painting ballparks and baseball games live, along with the many people who surround them.

Joey Mellows is a chap who loves baseball and set out to learn as much about it as he possibly could by going to games in Korea and taking a summer-long road trip across America. You may know him as @BaseballBrit on twitter.

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.