The Trammen system, a star system, resided in the Harron sector inside the Expansion Region and was the home of the planet known as Trammen.
- " Twinkle, Twinkle Little Star, How I Wonder Where We Are " — Voyages SF 13 (Unlicensed)
- The Essential Atlas
- Star Wars: The Essential Atlas Online Companion found on StarWars.com (article) (backup link)