Stewart Cliburn

I met him at the hotel he and the players and staff were staying at for the Minnesota Twins fantasy camp in Fort Myers, Florida in 2018.

Stewart signed a 1986 Fleer card #152.

https://www.baseball-reference.com/players/c/clibust02.shtml

Tom Filer

I met him at a Minor League spring training game at Paul Owens Training Facility at Carpenter Complex in Clearwater, Florida in 2017, when the Pittsburgh Pirates, whom he was a pitching coach for, came to play the Philadelphia Phillies.

Tom signed a 1986 Fleer card #58.

http://www.baseball-reference.com/players/f/filerto01.shtml

Jose Canseco

The autograph that started it all for me. Though, it was 5 years later before it became a massive hobby.

Jose signed a 1986 Fleer Update card #U-20.

http://www.baseball-reference.com/players/c/cansejo01.shtml