Railroad Archives Online
| Places term | Scope note | Archival description count | Authority record count |
|---|---|---|---|
| Popler (Wis.) | 0 | 0 | |
| Poplin (Wash.) | 0 | 0 | |
| Pori (Mich.) | 0 | 0 | |
| Port Alberni (B.C.) | 2 | 0 | |
| Port Angeles (Wash.) | 2 | 0 | |
| Port Byron (Ill.) | 0 | 0 | |
| Port Coquitlam (B.C.) | 1 | 0 | |
| Port Edwards (Wis.) | 0 | 0 | |
| Port Emma (N.D.) | 11 | 0 | |
| Port Guichon (B.C.) | 5 | 0 |