History Of The NFL timeline
AcrSavoniac I-O Pad, PDF
American Football Union - Wikipedia
The history of Dayton Triangles, the first NFL team
Labor Relations: Striking a Balance [5 ed.] 1259412385
The story of the first NFL game played in Dayton on Oct. 3, 1920
The story of the first NFL game played in Dayton on Oct. 3, 1920
The history of Dayton Triangles, the first NFL team
The story of the first NFL game played in Dayton on Oct. 3, 1920
Historic Map - Dayton, OH - 1870