Chicago Cubs history: The curious (and creepy) case of the Cubs
Remembering Back: The First Die-Hard Cubs Fan Convention - One
Clark, the Chicago Cubs mascot, signs a hat for a fan - NARA
Chicago Cubs unveil Fergie Jenkins statue for pitching great
Indy Moments: Snapshots of local life
Dodger Stadium to undergo $100-million renovation this offseason
Indy Moments: Snapshots of local life
Clark, the Chicago Cubs mascot, signs a hat for a fan - NARA
Chicago Cubs introduce mascot Clark
Forget Tradition: A Cubs Mascot is a Good Thing - Sports Illustrated
Chicago Cubs introduce first official mascot in modern history - ESPN
Chicago Cubs - #CubsCollection: Clark the Cub. Introduced in 2014
Clark the Cub
Clark (mascot) - Wikipedia