Looking through archived files a short time ago, we found a scan of the original writer's guide for the series. There are some interesting references and backgrounds given here for characters, some that made it into the series or were altered depending on the episode. For example, while the guidebook gives the name of Zachary Foxx's son as William Zachery Foxx, Lazerus Slade calls him "Zachery Jr." in Tune-Up, and that is the name that stuck with the fans.
Unfortunately the source of this was lost, however we have a suspicion that it may have been John Rawlins (see his later blog post).
If so or if not: thank you!