A

Hank Aaron: Hall of Fame-1982, .305 batting average, 755 Home Runs, 2297 RBI, 3771 Hits, 25 All-Star Selections, 1957 Gold Glove, 1957 World Series Champion, 1957 NL MVP

Jack Aker: 1966 AL Fireman of the Year (32 saves)

Roberto Alomar: Hall of Fame-2011, .300 batting average, 2724 hits, 474 stolen bases, 12 All-Star Selections, 1992, 93 World Series Champion, 10 Gold Gloves, 4x Silver Slugger, 1992 ALCS MVP, 1988 All-Star Game MVP 

Ruben Amaro Sr: 1964 Gold Glove, 1980 World Series Champion

Sparky Anderson: Hall of Fame-2000, 2194 wins, 1975, 76, 84 World Series Champion, 2x AL Manager of the Year (1984, 87)

Luis Aparicio: Hall of Fame-1984, 2677 hits, 506 stolen bases, 13 All-Star Selections, 1956 NL Rookie of the Year, 1966 World Series Champion, 9 Gold Gloves

Luke Appling: Hall of Fame-1964, .310 career batting average, 2749 hits, 7 All-Star Selections

Luis Arroyo: 2x All-Star Selection, 1961 World Series Champion