Cubs All-Time Uniform Number List
Flashback: New Orleans native Lou Klein involved in two of baseball's most bizarre times – Crescent City Sports
Cubs All-Time Uniform Number List
Gehrig, Lou Baseball Hall of Fame
1935 Chuck Klein Game Worn Jersey. Chicago Cubs fans have been, Lot #19736
The Chicago Cubs' College of Coaches: A Management Innovation That Failed – Society for American Baseball Research
1961 Lou Klein College of Coaches Game Worn Chicago Cubs, Lot #82437
Cubs All-Time Uniform Number List
Lou Klein – Society for American Baseball Research
Cubs All-Time Uniform Number List
1961 Lou Klein College of Coaches Game Worn Chicago Cubs Jersey., Lot #82496
Cubs All-Time Uniform Number List
Lou Klein – Society for American Baseball Research