ok... now look at your list under Houghton County. You will see you have listed Hancock at the next level three times:
Now, select the first one.
Look over at the right hand panel. You will see how the place name is actually entered in your database for that place in the upper right corner where it shows Name, Sort, Location.
Do this for the other two Hancocks.
Does one of the three show Houghton with County?
If so, that one is your culprit.
BTW, notice how you can show people either at the selected level by itself, or that level and all below it in the right panel.