John McLaren

I met him at Paul Owens Training Facility at Carpenter Complex, the Philadelphia Phillies spring training facility in Clearwater, Florida in 2017.

John signed a 1983 TCMA Knoxville Blue Jays Team Set card #19.

http://www.baseball-reference.com/register/player.cgi?id=mclare001joh

Jimmy Rogers

I met him at a celebrity golf tournament at Lansbrook Golf Course in Palm Harbor, Florida in 1996.

Jimmy signed a 1990 ProCards card #1241.

http://www.baseball-reference.com/players/r/rogerji02.shtml

John Poloni

I met him at a Minor League Dunedin Blue Jays game at Dunedin Stadium at Grant Field in Dunedin, Florida in 1995, when he was the pitching coach for the Dunedin Blue Jays.

John signed a 1988 Best Knoxville Blue Jays Team Set card #23.

http://www.baseball-reference.com/players/p/polonjo01.shtml