Wayne Kirby

I met him at Tropicana Field in St. Petersburg, Florida in 2014, when the Baltimore Orioles, whom he was the first base coach for, came to play the Tampa Bay Rays.
This was the first baseball card I ever got signed at a Major League game.

Wayne signed a 1990 ProCards card #80.

http://www.baseball-reference.com/players/k/kirbywa01.shtml

Mark Mimbs

I met him at Jack Russell Memorial Stadium in Clearwater, Florida in 1996, when the Texas Rangers came to play the Philadelphia Phillies in a spring training game.
This was a special day for Mark as he was opposing his brother, Mike, on the mound. Mark was cool enough to do me a huge favor, which I'll mention in an upcoming post.

Mark signed a 1992 Upper Deck Minor League card #77.

http://www.baseball-reference.com/minors/player.cgi?id=mimbs-001mar

Jon Debus

I met him at a Minor League game at Jack Russell Memorial Stadium in Clearwater, Florida in 1995, when the Vero Beach Dodgers, whom he was managing, came to play the Clearwater Phillies.

Jon signed a 1989 TCMA card #412.

http://www.baseball-reference.com/minors/player.cgi?id=debus-001jon

Jeff Fischer

I met him at a Minor League game at Jack Russell Memorial Stadium in Clearwater, Florida in 1995, when the West Palm Beach Expos, whom he was the pitching coach for, came to play the Clearwater Phillies.

Jeff signed a 1990 ProCards card #59.

http://www.baseball-reference.com/players/f/fischje01.shtml