This Wisconsin mansion sits on its own island, and 90 percent of it is original

It’s on a Mississippi River island

You can stand on the front lawn of Villa Louis and watch the Mississippi River roll past, wide and slow.

The mansion sits in Prairie du Chien, Wisconsin’s second-oldest city, on a 25-acre island estate that looks like it fell out of another century.

Built in 1871, this Italianate mansion served as the country home of the Dousman family, and the Wisconsin Historical Society now runs it as a National Historic Landmark. Step inside and you land in the 1890s.

But the story here goes back much further than the furniture.

A fur trade fortune paid for all of this

Hercules Dousman built one of Wisconsin’s first great fortunes trading fur along the Upper Mississippi.

His son, H. Louis Dousman, put that money into the ground in 1871, hiring Milwaukee architect E. Townsend Mix to design the mansion you see today.

The family later turned the property into a working horse farm called Artesian Stock Farm.

By the 1930s, two Dousman daughters stepped in to restore the estate, pulling it back from decades of wear and giving it a second life.

Ninety percent of the furniture is original

Walk through the parlor, dining room, master bedroom and front hall, and almost everything you see belonged to the family. About 90 percent of the furnishings are original to the house.

The Wisconsin Historical Society used rediscovered photographs to set each room exactly as the Dousmans kept it in the 1890s. Family heirs returned many of the pieces themselves.

You’re not looking at reproductions or guesses. These are the actual chairs, tables and curtains the family used every day.

A William Morris designer shaped the interior

The rooms carry a rare example of British Arts and Crafts design, shaped by a designer from the famous William Morris Company. Experts call it one of the finest such interiors in the country.

Rich colors fill the walls. Fine woodwork frames the doorways.

Detailed patterns run across fabrics and wallpaper.

An 1885 remodel gave the home this look, trading the original Victorian style for something warmer and more layered. You feel it the moment you step into the front hall.

Indoor plumbing in 1871 was a big deal

The mansion had indoor plumbing and steam heat when most Wisconsin homes still relied on outhouses and wood stoves. In 1871, that was serious money at work.

Costumed guides walk you through both the family’s world and the servants’ quarters, explaining how daily life ran in a home this size.

You get a sense of what comfort looked like during the Gilded Age, down to the pipes in the walls and the boiler in the basement.

Guides in period clothing walk you through every room

Your guides dress in 1890s clothing and know the house inside and out. Tours run on the hour and last about 60 to 90 minutes.

They’ll tell you stories about the family, the construction and the property, and they welcome questions along the way.

Visitors consistently praise how much the guides know and how willing they are to dig into the details. Come with questions.

You’ll get real answers, not scripted lines.

More than a dozen historic buildings fill the grounds

Beyond the mansion, the 25-acre estate holds more than a dozen historic buildings. You can walk through the Rolette House, the ice house, the laundry building and the pump house.

The old Dousman office building is part of the tour route. Stone and brick walkways connect everything, winding through the property along the river.

Give yourself time to explore. The grounds alone can fill an hour if you’re not in a rush.

Heirloom gardens and artesian wells dot the estate

The grounds bloom with heirloom gardens the Dousmans would recognize. Roses line the walkways, and a kitchen garden shows how the family grew its own food.

Peaceful duck ponds sit between the buildings, and waterfowl still come and go with the seasons. A historic artesian well and fountain survive on the property, a leftover from the estate’s days as a working farm.

The whole place feels lived-in, not roped off.

The fur trade story stretches back 2,000 years

Your admission covers the site’s deep fur trade history.

For centuries, Native Nations of the upper Mississippi gathered on this island to trade among themselves, long before Europeans arrived. The Dousman fortune grew directly from that centuries-old network.

Exhibits on the grounds explain how the trade worked, who controlled it and how the wealth moved upriver. The story stretches back over 2,000 years to Indigenous peoples who first used this land as a meeting point.

The mansion lawn is a War of 1812 battlefield

You’re standing on Wisconsin’s only War of 1812 battlefield when you walk the mansion grounds. American forces built a fort here in June 1814.

British troops laid siege the following July, and the Americans surrendered after a short fight. Most visitors don’t expect a battlefield at a Victorian mansion, but the history sits right under the grass.

Special battlefield programs interpret the Battle of Prairie du Chien, connecting the military story to the land you’re already exploring.

Over 100 carriages compete at the fall Carriage Classic

Every fall, the annual Carriage Classic brings more than 100 carriages and fine horses to the estate for a competition rooted in the family’s own horse farm history.

Events include arena driving and cross-country courses that wind across the property. The tradition traces directly back to the Artesian Stock Farm the Dousmans operated here.

There’s even a special dog class where pets ride along in the carriages. It’s one of the biggest events on the Wisconsin Historical Society calendar.

New programming marks America’s 250th birthday in 2026

The site is open seven days a week this season through early November, and 2026 marks America’s 250th birthday with special programming across the grounds.

“250 Tuesdays” brings rotating talks, object showcases and family scavenger hunts. A “Tea with Madame Dousman” series honors the women who saved the estate from ruin.

A guided 1812 battlefield walking tour takes you across the lawn and into the grounds’ layered military history. There’s more to see here this year than any season before.

Visit Villa Louis in Prairie du Chien, Wisconsin

You can find Villa Louis at 521 N. Villa Louis Road in Prairie du Chien, on St. Feriole Island along the Mississippi River.

The site is open seasonally, roughly late May through October, seven days a week from 9:30 a.m. to 4:30 p.m. Start at the elevated Visitor Center across from the mansion to buy tickets and find restrooms.

Check the official website before you go for current admission prices and any schedule changes for 2026 programming.

This article was created with AI assistance and human editing.

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