Padres history (Aug. 21): Trevor Hoffman's No. 51 retired - The San Diego Union-Tribune
Padres: Trevor Hoffman's WAR Days Without Baseball
Trevor Hoffman: Cooperstown Closer - Cooperstown Cred
A Pilgrimage to Cooperstown – The Kept Faith
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Trevor Hoffman's number 51 retirement ceremony - Gaslamp Ball
Trevor Hoffman: Career timeline, stats, numbers & 'Hells Bells
Jack Murphy Stadium (San Diego) – Society for American Baseball Research
All-time saves leader Trevor Hoffman retires at 43 - The San Diego Union- Tribune
National anthem touching finale to Trevor Hoffman's day - The San Diego Union-Tribune
Trevor Hoffman - Wikiwand
San Francisco Giants
Matt Holliday - Wikipedia
Top Friars, Including Trevor Hoffman, to Join with Naval Special Warfare for Padres Alumni Game - Times of San Diego