Two-time Super Bowl champion Dave Butz, 72, dies
Certificate of Distinction
Purdue DT Dave Butz Elected To College Football Hall of Fame
Pro Football Journal: Rest In Peace—Dave Butz
Purdue Boilermakers football - Wikipedia
Dave Butz, one of best football players in Illinois state history
Purdue Boilermakers football - Wikipedia
Two-time Super Bowl champion Dave Butz, 72, dies
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Uncle Mike's Musings: A Yankees Blog and More: How to Be a Rutgers
Dave Butz, Purdue grad who helped Washington win 2 Super Bowls