I don't find "Hannie" in m-w, so, continuing from "henna":
Neenah
There are at least two words that can follow TRENTON.
The other word that could have followed Trenton was tontiner.
There is at least one word that can follow UNROTTEN.
Add an S to UNROTTEN to get the next word.
... and me a birder...
turnstones