Since no other guess or no one cares, here are the signatures that are on my ~25 yr old Reading Phillies hat. Zach Eflin (Phils game in Baltimore) - I will miss you. He also spent 5 minutes or so talking to me after a Team USA game in Cary, NC soon after he was traded to the Phillies. I have pulled for him after that.
Others got last year. Logan OāHoppe - Reading road game in Somerset when I was up north visiting family. He was hesitant to sign as he did not want to ruin the worth of my hat with Eflin on it - lol. Not my concern. Seemed down to earth. I had a feeling he might be traded, but did not discuss with him. I wish him well.
Last two are Andrew Painter and Mick Abel - JS road game in Greensboro. They both went to Reading after this series. Each spent time outside the stadium to talk and take pictures with Phillies fans and others. Each very nice and probably happy they were going up.
It is fun seeing future Phils in the minors - helps develop my future favorites.