| Team name | Location | League | Level | Status |
|---|---|---|---|---|
| Eldorado | Eldorado, Illinois | Southern Illinois League | professional | defunct |
| Harrisburg Merchants | Harrisburg, Illinois | Southern Illinois League | professional | defunct |
| Herrin | Herrin, Illinois | Southern Illinois League | professional | defunct |
| McLeansboro Merchants | McLeansboro, Illinois | Southern Illinois League | professional | defunct |
| Mount Vernon Merchants | Mount Vernon, Illinois | Southern Illinois League | professional | defunct |