Baseball changes by MLB harken back to dead-ball era - Sports Illustrated
Examining Stolen Base Trends by Decade from the Deadball Era through the 1970s – Society for American Baseball Research
The Rise and Fall of the Deadball Era – Society for American Baseball Research
MLB: What is ERA in baseball? What does it stand for? What does it mean?
Dead Ball Era - The Death of Ray Chapman:A Turning Point in Baseball History
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Deadball: Keeping Score with W.M. Akers - Metsmerized Online
1957 Ty Cobb Single Signed Baseball. The seventy-one year old, Lot #19432
DEAD BALL ERA
The Spitball and the End of the Deadball Era – Society for American Baseball Research
Today in Baseball History: 'Balata ball' threatens a new Dead Ball Era - NBC Sports
MLB using different balls? Juiced balls? Here's why everybody is mad
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Dead Ball at the Met HuffPost Entertainment