1Chronicles 9

This chapter has a genealogy of those who returned, as well as another one for Saul. Since we just got through with one, it's natural to ask if we need more. I take it as evidence that 1Chronicles was written by more than one person. This isn't to deny inspiration; there's no reason to think the Holy Spirit couldn't have inspired two (or two million) as easily as one.

And of course editors can be inspired, too.