Mickey Moniak

I met him during the Philadelphia Phillies Florida Instructional League at Bright House Field in Clearwater, Florida in 2016.

Mickey signed a 2013 Panini USA Baseball card #51.

https://www.baseball-reference.com/players/m/moniami01.shtml

Cavan Biggio

I met him during the Toronto Blue Jays Florida Instructional League at the Bobby Mattick Training Center at Englebert Complex in Dunedin, Florida in 2016.

Cavan signed a 2013 Panini USA Baseball Champions Highlights card #10.

https://www.baseball-reference.com/players/b/biggica01.shtml

Cole Stobbe

I met him at a Minor League GCL Phillies game at Paul Owens Training Facility at Carpenter Complex in Clearwater, Florida in 2016.

Cole signed a 2015 Panini USA Baseball card #47.

http://www.baseball-reference.com/register/player.cgi?id=stobbe000col

Kevin Gowdy

I met him at a Minor League GCL Phillies game at Paul Owens Training Facility at Carpenter Complex in Clearwater, Florida in 2016.

Kevin signed a 2015 Panini USA Baseball card #76.

http://www.baseball-reference.com/register/player.cgi?id=gowdy-000kev