- Card series: 1888 Champion New York Giants
- City: New York
- Team: Giants
- League: National League
- Hall: National Baseball Hall of Fame
Smiling Mickey (1859-1941). An elite pitcher for 13 professional seasons, Welch was the 3rd pitcher to reach 300 wins. Mickey was a 20-game winner 9 times in his career, 7 times in succession. He also won 30+ games 4 times and 40+ games once. Shared pitching duties with HOFers John Ward & Tim Keefe.
- 1st pinch hitter in Major League history: 9.10.89, when he pinch hit for fellow HOFer Hank O’Day
- Still holds record for consecutive K’s to start a game: 9
- Elected to Hall of Fame: 1973