Mr. and Mrs. duPont sometimes took their meals in other rooms on trays, but when they dined here, they were always formally dressed.
When all the leaves are in place, the table is 25 feet long. The chandelier is believed to have come from Schönbrunn Palace in Vienna where Marie Antoinette spent much of her childhood. Her portrait hangs over the cabinet, and a portrait of her husband, Louis XVI, is over the mantel.
The ceiling decoration is done in a neoclassical style popularized in England in the 18th century by Robert Adam.