Timeline: How football became a Thanksgiving tradition
The History of the NFL on Thanksgiving - Gang Green Nation
Lombardi put end to Packers' annual Thanksgiving clash with Detroit
Lions, Bears, the Red Grange Trophy, and a Thanksgiving Football Mystery
Detroit rolls to 23-0 lead in first half; defense smothers Green Bay attack
Packers Thanksgiving History: Green Bay holds 14-19-2 record on Turkey Day - Acme Packing Company
Every NFL team's record in Thanksgiving games – NBC Sports Philadelphia
Thanksgiving Football: Detroit Lions Game History
Could the Detroit Lions lose their Thanksgiving Day game?
NFL Thanksgiving Games: History, traditions and best moments - ESPN
Detroit Lions' Monday History Features Stunning Losses
Why do we play on Thanksgiving Day?