Clark Haggans dies; former Steelers linebacker was 46
Clark Cromwell Haggans, Clark Haggans dies at 46
Perspective Of An Average Steelers Fan: Top 500 Steelers (2020 Edition) - Steelers Depot
Super Bowl XL - Wikipedia
Clark Haggans, longtime NFL linebacker who won a Super Bowl with the Steelers, dies at 46
Clark Haggans dead at 46: Ex-Pittsburgh Steelers linebacker was Super Bowl champion
Clark Haggans dies; former Steelers linebacker was 46
Clark Haggans, longtime NFL linebacker who won a Super Bowl with the Steelers, dies at 46 - The San Diego Union-Tribune