James Gleason Dunn Conzelman was an American football player and coach, baseball executive, and advertising executive. He was inducted into the Pro Football Hall of Fame in 1964 and was selected in 1969 as a quarterback on the National Football League 1920s All-Decade Team.

The Rock Island Independents were a professional American football team, based in Rock Island, Illinois, from 1907 to 1926. The Independents were a founding National Football League franchise. They hosted what has been retrospectively designated the first National Football League game on September 26, 1920 at Douglas Park. The Independents were founded in 1907 by Demetrius Clements as an independent football club. Hence, the team was named the "Independents."