Jason Varitek

I met him at Tropicana Field in St. Petersburg, Florida in 2021, when the Boston Red Sox, whom he was the game planning coordinator for, came to play the Tampa Bay Rays.

Jason signed a 1994 Signature Rookies Draft Picks card #14.

https://www.baseball-reference.com/players/v/varitja01.shtml

Fernando Arguelles

In May of 2021, I decided to seek out an address for Fernando Arguelles. I sent him my card and the following letter.

Six days later my card came back signed and he included a brief note.

Fernando signed a 1991 Line Drive AA Pre-Rookie card #326.

https://www.baseball-reference.com/register/player.fcgi?id=arguel002fer

Jim Newlin

In January of 2021, I decided to seek out an address for Jim Newlin. I sent him my card and the following letter.

Six days later my card came back signed.

Jim signed a 1991 Line Drive AA Pre-Rookie card #340.

https://www.baseball-reference.com/register/player.fcgi?id=newlin001jam

Aubrey Waggoner

On September 10, 2020, I decided to go through these 2 alphabetical boxes of baseball cards and pull random cards out. I would then look to see if I could find a mailing address online to send a card to.

I ended up writing and mailing out 11 letters that day. All addresses that I looked up myself, not listed on an autograph database, as far as I could tell.

I found what looked to be a legitimate address for Mr. Waggoner, so I wrote him a letter and included my card.

54 days later my card came back signed.

Aubrey signed a 1993 Classic Best card #293.

https://www.baseball-reference.com/register/player.fcgi?id=waggon001aub

Bryan Price

I met him at Paul Owens Training Facility at Carpenter Complex, the Philadelphia Phillies spring training facility in Clearwater, Florida in 2020.

Bryan signed a 1995 Everett Aquasox Team Set card #16.

https://www.baseball-reference.com/register/player.fcgi?id=price-001bry

Steve Balboni

I met him at Tropicana Field in St. Petersburg, Florida in 2019, where he was scouting a game between the Houston Astros and Tampa Bay Rays.

I was standing outside of the stadium, waiting to get in line to enter when I recognized Mr. Balboni approaching. I was aware that he was a scout, so I carried a card of his with me in case I ever bumped into him. 

Steve signed a 1989 Fleer card #538.

https://www.baseball-reference.com/players/b/balbost01.shtml

Ji-Man Choi

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

Ji-Man signed a 2013 Topps Pro Debut card #82.

https://www.baseball-reference.com/players/c/choiji01.shtml

James Pazos

I met him at Paul Owens Training Facility at Carpenter Complex, the Philadelphia Phillies spring training facility in Clearwater, Florida in 2019.

James signed a 2017 Topps Update Series card #US149.

https://www.baseball-reference.com/players/p/pazosja01.shtml

Josh Stowers

I met him at a Minor League spring training game at Paul Owens Training Facility at Carpenter Complex in Clearwater, Florida in 2019, when the New York Yankees came to play the Philadelphia Phillies.

Josh signed a 2018 Bowman Draft card #BD-190.

https://www.baseball-reference.com/register/player.fcgi?id=stower000jos

Mike Zunino

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

Mike signed a 2015 Bowman card #36.

https://www.baseball-reference.com/players/z/zuninmi01.shtml

Danny Farquhar

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

Danny signed a 2014 Topps card #244.

https://www.baseball-reference.com/players/f/farquda01.shtml

James Paxton

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

James signed a 2019 Topps card #241.

https://www.baseball-reference.com/players/p/paxtoja01.shtml

Drew Jackson

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

Drew signed a 2015 Bowman Draft card #149.

https://www.baseball-reference.com/players/j/jacksdr01.shtml

Patrick Kivlehan

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

Patrick signed a 2014 Topps Pro Debut card #117.

https://www.baseball-reference.com/players/k/kivlepa01.shtml

Andrew Romine

I met him at Paul Owens Training Facility at Carpenter Complex, the Philadelphia Phillies spring training facility in Clearwater, Florida in 2019.

Andrew signed a 2018 Topps Heritage card #641.

https://www.baseball-reference.com/players/r/rominan01.shtml

Emilio Pagan

I met him at the Tampa Bay Rays Fan Fest at Tropicana Field in St. Petersburg, Florida on February 9, 2019.

Emilio signed a 2017 Topps Update Series card #US181.

https://www.baseball-reference.com/players/p/paganem01.shtml

Guillermo Heredia

I met him at the Tampa Bay Rays Fan Fest at Tropicana Field in St. Petersburg, Florida on February 9, 2019.

Guillermo signed a 2018 Topps card #522.

https://www.baseball-reference.com/players/h/heredgu01.shtml

Taylor Motter

I met him at the Florida Minor League Camp at Baseball City in St. Petersburg, Florida in 2019.
The camp is designed for undrafted college players to get professional coaching. Taylor just happened to be there taking infield drills along with them. I recognized him and by chance had this card on me.

Taylor signed a 2018 Topps Heritage card #604.

https://www.baseball-reference.com/players/m/motteta01.shtml

Fernando Rodney

I met him at Tropicana Field in St. Petersburg, Florida in 2018, when the Oakland A's came to play the Tampa Bay Rays.

Fernando signed a 2015 Topps card #52.

https://www.baseball-reference.com/players/r/rodnefe01.shtml

Bryson Brigman

I met him at a Minor League game at Florida Auto Exchange Stadium in Dunedin, Florida in 2018, when the Jupiter Hammerheads came to play the Dunedin Blue Jays.

Bryson signed a 2017 Topps Pro Debut card #194.

https://www.baseball-reference.com/register/player.fcgi?id=brigma000bry