Forsythe Longtreader was a buck who illustrated maps. He is the oldest known patriarch of the Longtreader family.
- According to S. D. Smith, Forsythe is an ancestor of the Longtreaders who hearkens all the way back to King Whiston's time. However, on the maps Forsythe has drawn, one shows Jupiter's Crossing on it.
- Before the death of King Jupiter, it was simply called "the Crossing". Therefore, if these maps were drawn centuries before King Jupiter's time, it should not say 'Jupiter's Crossing; It should just be "The Crossing" instead.