A lifetime . 358 hitter , Hornsby was inducted in the Hall of Fame in 1942 .
The Cardinals honored Hornsby alongside the retired numbers with the ' SL ' symbol due to Hornsby 's playing days predating the use of numbers .
A lifetime . 358 hitter , Hornsby was inducted in the Hall of Fame in 1942 , and the Cardinals honored him alongside the retired numbers with the ' SL ' symbol due to his playing days predating the use of numbers .