Joe Kapp's style wasn't pretty, but the Hart High product persevered – Daily News
Remembering former Vikings quarterback Joe Kapp
Joe Kapp, Vikings quarterback in Super Bowl IV, dies at age of 85
Joe Kapp obituary: Rembemring one of the all-time great BC Lions
Cal legend Joe Kapp passes away at age of 85
Cal legend Joe Kapp passes away at age of 85
Former CFL, NFL quarterback Joe Kapp dead at age of 85
Vikings Legend Joe Kapp Dies at Age 85; QB Led MIN to 1969 NFL Championship, News, Scores, Highlights, Stats, and Rumors
Ex-Minnesota Vikings, U. of California quarterback Joe Kapp dies at 85
Joe Kapp's Lawsuit Paved the Way for N.F.L. Free Agency - The New York Times