Ryan McMahon

I met him at Tropicana Field in St. Petersburg, Florida in 2019, when the Colorado Rockies came to play the Tampa Bay Rays.

Ryan signed a 2016 Topps Heritage Minor League card #16.

https://www.baseball-reference.com/players/m/mcmahry01.shtml

Joe Jimenez

I met him at Spectrum Field in Clearwater, Florida in 2019, when the Detroit Tigers came to play the Philadelphia Phillies in a spring training game.

Joe signed a 2016 Topps Heritage Minor League card #143.

https://www.baseball-reference.com/players/j/jimenjo02.shtml

Luis Carpio

I met him at a Minor League game at LECOM Park in Bradenton, Florida in 2018, when the St. Lucie Mets came to play the Bradenton Marauders.

Luis signed a 2016 Topps Heritage Minor League card #163.

https://www.baseball-reference.com/register/player.fcgi?id=carpio000lui

Mike Hessman

I met him at Tigertown, the Detroit Tigers spring training facility in Lakeland, Florida in 2018.

Mike signed a 2016 Topps Heritage Minor League Minor Miracles card #MM-10.

https://www.baseball-reference.com/players/h/hessmmi01.shtml