Purdue DT great Dave Butz passes away - On3
Who was the Washington Redksins defensive legend Dave Butz? - AS USA
In Memoriam: NFL Legend & NRA Director Dave Butz
Uncle Mike's Musings: A Yankees Blog and More: How to Be a Rutgers Fan at Purdue -- 2020 Edition
The hand behind Purdue's Cradle passes - BoilerUpload
Dave Butz, two-time Super Bowl champ with Washington, dead at 72
Dave Butz, who led Washington to pair of Super Bowl titles, dead at 72 – WFTV
Remembering Purdue Legend Dave Butz - BoilerUpload
Dave Butz, stalwart of Washington's 1980s defenses, dies at 72 - The Washington Post
Remembering Purdue Legend Dave Butz - BoilerUpload
Pro Football Journal: Rest In Peace—Dave Butz