The 1930 NFL season was the 11th regular season of the National Football League. Prior to the season, Brooklyn businessmen William B. Dwyer and John C. Depler bought the Dayton Triangles, moved it, and renamed it the Brooklyn Dodgers. The Orange Tornadoes relocated to Newark and the Buffalo Bisons and the Boston Bulldogs dropped out. The Portsmouth Spartans entered as a new team.
Meanwhile, the Green Bay Packers were named the NFL champions for the second straight year after they finished the season with the best record. Taken from http://en.wikipedia.org/wiki/1930_NFL_season.