Logo of a former National Football League team, the Rock Island Independents. They were founded in 1907 as an independent team and joined the NFL in 1920. The club played through the 1925 season but never finished higher than fifth place, and eventually folded. The club did have four Pro Football Hall of Famers on its’ roster over the years – Jimmy Conzelman, Joe Guyon, Ed Healey and Jim Thorpe.