Estate sale brings in hundreds of buyers to small town Ayr, NDAyr, ND (WDAY TV) -- Ayr, North Dakota. Normally, population about 10. Today, it swelled to hundreds, for a one-of-a-kind auction. People, from all over the country, were bidding on the estate of Keith Johnson, a man credited with keeping the small town alive. There were antique cars, trucks, model-T's, old Mobil Oil signs and products. One man's museum.