D.H. Robbins homesteads near what is now the Mille Lacs Indian Museum site and builds the first frame house on Lake Mille Lacs.
Robbins operates a sawmill milling timber cut from reservation land
Robbins begins farming on 80 acres of clear-cut land.
Robbins operates a trading post out of his residence.
Harry and Jeannette Ayer purchase land from Robbins on Whitefish Lake near Lake Mille Lacs.
Robbins sells his property and buildings to the US government. Ayer applies to the White Earth Indian Agency for a trader’s license and requests to operate the store on the Robbins property.
Ayer begins renting cabins to hunters and visitors, and later buys 63 acres of lakeshore.
The US government forces Ayer to vacate the government-owned buildings and the Robbins store and residence. Ayer begins building a new trading post and store.
The site now contains 24 cabins, an icehouse and fish-cleaning shed, and gas pumps.
The Ayers' resort business is in full swing with cabins and boats, a dining hall, boat docks, boat factory, maple sugar syrup refinery, gas station, trading post, and store.
Ayer sells the boat factory to the US Department of the Interior.
Ayer donates his collection of Indian artifacts — mainly Ojibwe craft and tool items — the buildings, and land to the Minnesota Historical Society.
MNHS opens an exhibit of artifacts to the public.
Ayer works with MNHS to add the "Four Seasons" exhibit room to the museum.
Jeannette and Harry Ayer die.
Four Seasons exhibit opens.
New Mille Lacs Indian Museum opens to the public.