The Rosson House, on Heritage Square downtown, is seen by guided tour only:
$14 each, about an hour, Thursday to Sunday
(tours (opens in a new window)). Book the 1 or 2 pm tour.
Arrive 15 minutes early and walk the square. If you eat after, that is yours to price.
With an EBT card, Museums for All brings the tour to $3 each.
The easy exit
The guide ends the tour after an hour. Neither of you has to decide when it is over.