Penn State Nittany Lions football - Wikipedia
Jack Ham: Hall of Fame Football Outside Linebacker
List of best NFL players from Pittsburgh area evokes all-era roster
The Britannica Guide To Football, PDF, American Football Leagues
Only Jack Ham Until Penn State Football - Black Shoe Diaries
Jack Ham surprises Penn State walk-on with scholarship; Lions legacy recruit visits campus, and more
Jack Ham - Cambria County Sports Hall of Fame
Penn State football legend to be honored by NFL Hall of Fame
Sports Connections, Johnstown's Ham, a 'good worker,' was a star with Penn State, Steelers, Sports
Pennsylvania Center for the Book