The league changed its name once again in 1939 as it bares itself of any pretense of being a regional league. After one year of being the American Football League, the league became the American Professional Football Association, ironically the original name of the professional football league that became the National Football League. The name of the league was not the only change for the season: the Dayton Rosies became the Dayton Bombers; the Nashville Rebels left the league after only one year of competition; and Wisconsin's Kenosha Cardinals and three familiar teams joined the loop for the upcoming season.
I sincerely appreciate the research work, and the information being shared. It is important and interesting history.