Jason Weintraub

I met him at the Baseball Card Clubhouse, a store he owns in Tampa, Florida in 2023.

Jason signed a 2001 Bowman Draft Picks & Prospects card #BDP101.

https://www.baseball-reference.com/register/player.fcgi?id=weintr001jas

Rick Guarno

I met him at a Minor League game at BayCare Ballpark in Clearwater, Florida in 2023, when the Tampa Tarpons, with whom he was the hitting coach, came to play the Clearwater Threshers.

Rick signed a 2003 Bowman Draft Picks & Prospects card #BDP97.

https://www.baseball-reference.com/register/player.fcgi?id=guarno001ric

Joe Gatto

My dad's birthday is June 14th. He passed away on August 31, 2020. For his first birthday without him,  I came up with another TTM challenge for myself. This one I called "Dad TTM Project." On June 8, 2021, six days before his birthday, I sent birthday cards to eleven baseball players who also shared his birthday.

Here is the card that I sent to Joe Gatto.

300 days later, my card came back signed, and he was nice enough to mark "do not bend" on the front and back of the envelope. He also included an additional signed card.

Joe signed a 2014 Bowman Draft Picks & Prospects card #DP51.

https://www.baseball-reference.com/register/player.fcgi?id=gatto-000joe

Austin DeCarr

In March of 2021, I was looking for cards to mail out and I saw on the back of Austin DeCarr's card that his birthday was less than a week away (March 14th), so I decided to look him up and I found his address and sent him my card and the following letter.

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

Austin signed a 2014 Bowman Draft Picks & Prospects card #DP60.

https://www.baseball-reference.com/register/player.fcgi?id=decarr000aus

Marcus Wilson

I met him at Spectrum Field in Clearwater, Florida in 2020, when the Boston Red Sox came to play the Philadelphia Phillies in a spring training game.

Marcus signed a 2014 Bowman Draft Picks & Prospects card #DP63.

https://www.baseball-reference.com/players/w/wilsoma02.shtml

Mason Williams

I met him at Spectrum Field in Clearwater, Florida in 2020, when the Baltimore Orioles came to play the Philadelphia Phillies in a spring training game.

Mason signed a 2014 Bowman Draft Picks & Prospects card #TP-64.

https://www.baseball-reference.com/players/w/willima10.shtml

Brian Gonzalez

I met him at a Baltimore Orioles vs. Tampa Bay Rays game at Tropicana Field in St. Petersburg, Florida in 2019.
He had made a rehab appearance earlier in the day for the GCL Orioles in nearby Sarasota, Florida. I brought the card with me thinking that he might show up to watch the parent club. I spotted him just before the game started sitting in the stands. I walked over to him with my card and pen in hand and asked, "Brian, can I get an autograph?" He looked at me and said, "good eye."

Brian signed a 2014 Bowman Draft Picks & Prospects card #DP85.

https://www.baseball-reference.com/register/player.fcgi?id=gonzal000bri

Carlos Correa

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

Carlos signed a 2014 Bowman Draft Picks & Prospects card #TP-3.

https://www.baseball-reference.com/players/c/correca01.shtml

Randolph Gassaway

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 Pittsburgh Pirates came to play the Philadelphia Phillies.

Randolph signed a 2013 Bowman Draft Picks & Prospects card #BDPP89.

https://www.baseball-reference.com/register/player.fcgi?id=gassaw000ran

Bruce Billings

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

Bruce signed a 2011 Bowman Draft Picks & Prospects card #6.

https://www.baseball-reference.com/players/b/billibr02.shtml

Josh Martin

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

Josh signed a 2012 Bowman Draft Picks & Prospects card #BDPP160.

https://www.baseball-reference.com/register/player.fcgi?id=martin046jos

Jason Martin

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.

Jason signed a 2013 Bowman Draft Picks & Prospects card #BDPP69.

https://www.baseball-reference.com/players/m/martija03.shtml

Joey Wendle

I met him at a Tampa Bay Rays game at Tropicana Field in St. Petersburg, Florida in 2018.

Joey signed a 2014 Bowman Draft Picks & Prospects card #BP110.

https://www.baseball-reference.com/players/w/wendljo01.shtml

Rosell Herrera

I met him at Tropicana Field in St. Petersburg, Florida in 2018, when the Kansas City Royals came to play the Tampa Bay Rays.

Rosell signed a 2014 Bowman Draft Picks & Prospects card #TP-21.

https://www.baseball-reference.com/players/h/herrero02.shtml

Zech Lemond

I met him at a Minor League game at Spectrum Field in Clearwater, Florida in 2018, when the Jupiter Hammerheads came to play the Clearwater Threshers.

Zech signed a 2014 Bowman Draft Picks & Prospects card #DP64.

https://www.baseball-reference.com/register/player.fcgi?id=lemond000zec

Justin Twine

I met him at a Minor League game at LECOM Park in Bradenton, Florida in 2017, when the Jupiter Hammerheads came to play the Bradenton Marauders.

Justin signed a 2014 Bowman Draft Picks & Prospects card #DP41.

https://www.baseball-reference.com/register/player.fcgi?id=twine-000jus

Kevin Franklin

I met him at a Minor League game at Spectrum Field in Clearwater, Florida in 2017, when the Daytona Tortugas came to play the Clearwater Threshers.

Kevin signed a 2013 Bowman Draft Picks & Prospects card #BDPP25.

https://www.baseball-reference.com/register/player.fcgi?id=frankl000kev

Austin McClune

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

Austin signed a 2006 Bowman Draft Picks & Prospects Gold card #DP37.

http://www.baseball-reference.com/register/player.fcgi?id=mcclun001aus

Derek Hill

I met him at a Minor League game at Paul Owens Training Facility at Carpenter Complex in Clearwater, Florida in 2017, when the GCL Tigers West, whom he was on a rehab assignment with, came to play the GCL Phillies.

Derek signed a 2014 Bowman Draft Picks & Prospects card #DP19.

https://www.baseball-reference.com/players/h/hillde01.shtml

Brandon Cumpton

I met him at a Minor League game at Spectrum Field in Clearwater, Florida in 2017, when the Bradenton Marauders, whom he was on a rehab assignment with, came to play the Clearwater Threshers.

Brandon signed a 2014 Bowman Draft Picks & Prospects card #BP81.

http://www.baseball-reference.com/players/c/cumptbr01.shtml