along with any special notes about the early history of the NFL.
|x - Providence Steam Rollers|
|Frankford Yellow Jackets|
|Green Bay Packers|
|New York Giants|
|New York Yankees|
x - 1928 National Football League Champions |
** Special Note ** ~ The Detroit Wolverines are granted an NFL franchise but play only the 1928 season. The Wolverines also hold the distinct record as the team with the best all-time winning percentage in NFL history with a winning % of (.778). The New York Yankees fold after the 1928 NFL season.