Van Nightingale – Ars Longa Art Cards
What pitcher has had the most effective pickoff in MLB history? - Quora
19 Tim Keefe” Baseball Stock Photos, High-Res Pictures, and Images - Getty Images
Hall of Fame - National Sporting Goods Association
October 16, 1888: Tim Keefe leads Giants to tense victory in Game One – Society for American Baseball Research
19 Tim Keefe” Baseball Stock Photos, High-Res Pictures, and Images - Getty Images
Nashville Scene 10-6-22 by FW Publishing - Issuu
August 14, 1888: Tim Keefe finally loses and “Casey at the Bat” premieres – Society for American Baseball Research