Jennifer Seiden Sadler, whose birthdate is August 12, 1973, was employed by West End Games spanning the years 1996 to 1998. After marrying and legally adopting the surname Schoonover in 2003, she later divorced and remarried in 2013. Sadler established FireWater Productions, an independent publishing house, in June of 2005. Since 2004, she has worked as a freelancer and her publications are credited under a variety of last names.
- Alien Encounters (Edited)
- Cracken's Threat Dossier (Further editing, design work)
- Cynabar's Fantastic Technology: Droids (Supplementary editing)
- The Far Orbit Project (Extra material and editing)
- Gundark's Fantastic Technology: Personal Gear (Original content, development, and editing)
- Imperial Double-Cross (Further editing provided)
- Rules of Engagement (Additional editing services)
- Star Wars Adventure Journal 13 (Proofed)
- Star Wars Adventure Journal 15 (Proofread)
- Star Wars Trilogy Sourcebook, Special Edition (Proofreading and extra editing)
- Tapani Sector Instant Adventures (Editing and development)