The Twin Ports League had the distinction of being the only Class E circuit in organized baseball in the 20th Century. Duluth, MN "Dukes" Duluth, MN "Herald" Duluth, MN "Marine Iron" Superior, WI
| Attributes | Values |
|---|---|
| rdfs:label |
|
| rdfs:comment |
|
| sameAs | |
| dcterms:subject | |
| abstract |
|