Lincoln Riley's Heisman QB timeline: Caleb Williams, Kyler Murray, Baker Mayfield all in unprecedented pipeline
Johnny On The Spot – Notre Dame Fighting Irish – Official Athletics Website
Johnny Lujack, Heisman winner and Bears quarterback, dies at 98
Johnny Lujack, a Star Quarterback at Notre Dame, Dies at 98 - The New York Times
Sam Hartman's impressive debut as Notre Dame dreaming big – NBC Sports Chicago
Luckman, Lujack … McCown? The best Bears quarterback performances of all-time - The Athletic
Johnny Lujack, Notre Dame (1943, 1946-1947)
Johnny Lujack, former Heisman winner and All-Pro QB with Bears, dies at age of 98
Joe Theismann - Wikipedia
1946 Army-Notre Dame, Game of Century - The San Diego Union-Tribune