Saving our history

I've been following the progress on the restoration of a circa 1820 house in Glasgow Kentucky. It's an interesting old structure with a kitchen separated from the house, and slave quarters in the basement. There's a covered porch between the kitchen and the house, and a door in the porch leads to a root cellar beneath the kitchen. One feature I found interesting is the three doors between the porch and the dining room. The center door leads into the dining room, but the doors to each side open into closets. The kitchen slaves would open the door to the right and place the clean dishes, tableware, napkins and the like in there. The closet door on the left is where they would place the prepared food. Once these outside closet doors were closed the serving staff would open inside doors that provided access to the same closets, set the tables and serve the food.