History of the Washington Commanders - Wikipedia
San Francisco 49ers - Wikipedia
Week 11 of 49ers' 1981 season: Done in by the Browns, the weather and the 'Stick
Coaching History — Hoosier Huddle
Tom Brady and Desirable Difficulties, by Jeremy Tutt
It Came From the (Photo) Morgue: 49er Fever
Bengals alums reflect on 1988 'shuffle' to Super Bowl - The San Diego Union-Tribune
Eric Wright Football University
Building a Champion: On Football and the Making of the 49Ers: 9780312925796: Walsh, Bill, Dickey, Glenn: Books