| Team name | Location | League | Level | Status |
|---|---|---|---|---|
| Clinton Teddies | Clinton, Iowa | Northern Association | professional | defunct |
| Decatur Commodores | Decatur, Illinois | Northern Association | professional | defunct |
| Elgin Kittens | Elgin, Illinois | Northern Association | professional | defunct |
| Freeport Pretzels | Freeport, Illinois | Northern Association | professional | defunct |
| Jacksonville Jacks | Jacksonville, Illinois | Northern Association | professional | defunct |
| Joliet Jolly-ites | Joliet, Illinois | Northern Association | professional | defunct |
| Kankakee Kays | Kankakee, Illinois | Northern Association | professional | defunct |
| Muscatine Pearl Finders | Muscatine, Iowa | Northern Association | professional | defunct |
| Sterling Infants | Sterling, Illinois | Northern Association | professional | defunct |