Gene Roof

I met him at a Minor League game at Spectrum Field in Clearwater, Florida in 2017, when the Lakeland Flying Tigers came to play the Clearwater Threshers.
He was there as the Detroit Tigers Minor League outfield and baserunning coordinator.

I met his brother, Phil a year earlier.

Gene signed a 1982 Donruss card #615, which incorrectly lists his first name as Phil.

http://www.baseball-reference.com/players/r/roofge01.shtml

Ken Kravec

I met him at a Minor League game between the Fort Myers Miracle and the Bradenton Marauders at McKechnie Field in Bradenton, Florida in 2016.

He was there as a scout. I had seen him many times scouting at Clearwater Threshers games, so I decided to order a baseball card of him and carry it with me until I saw him again. I didn't have to carry it long. I had the card for about 2 weeks before I spotted him scouting at the Marauders game.

Ken signed a 1982 Donruss card #378.

http://www.baseball-reference.com/players/k/kraveke01.shtml