Pro Football Journal: Rest In Peace—Dave Butz
Dave Butz, who helped Washington win 2 Super Bowls, dies
Washington Commanders - Wikipedia
Commanders Great Dave Butz Dead at 72 - Sports Illustrated
Super Bowl XXII - Wikipedia
Why Dave Butz Left The Cardinals
Commanders Legend Dave Butz Dead At 72, Joe Theismann Mourns
Dave Butz, who helped Washington win 2 Super Bowls, dies
Dave Butz, who helped Washington win 2 Super Bowls, dies – KVEO-TV