Willard Bunnell was born in 1814 and rose from cabin boy to captain in the Great Lakes steamboat trade. He married Matilda Desnoyer in 1837 in Detroit, and became involved in efforts to open up the American frontier. He helped survey a military road from Detroit to Mackinaw, then began trading with the Ojibwe people around the Escanaba River.[3]
In 1841 Willard and Matilda Bunnell, along with his younger brother Lafayette, traveled to the Upper Mississippi River, ultimately settling in Trempealeau, Wisconsin. From 1845 to 1846 Lafayette Bunnell was involved in logging and timber rafting on the Chippewa River, a short-lived effort that nevertheless presaged what would become the founding industry of the region. The brothers also helped build the first sawmill on the Eau Claire River, which would give rise to the city of Eau Claire, Wisconsin.[3]
In the late 1840s Lafayette returned east and entered military service, while Willard remained on the Upper Mississippi. The land across the river was still the territory of the Dakota people and was closed to Euro-American settlement, but Willard anticipated a change and gained permission from Chief Wabasha III to build a log cabin on the west bank of the Mississippi.[3]
In 1852, following the Treaty of Traverse des Sioux, much of Minnesota Territory opened to white settlement. Over the next few years Willard Bunnell helped found three new towns—Minneowah, Chatfield, and Homer—largely out of the expectation that Winona would fail because he judged the site prone to flooding. However floods did not trouble Winona and the community prospered, while Bunnell's alternatives remained small.[3]
Sometime during this period Williard also built a new, grander home beside his and Matilda's original log cabin—the house that is still standing today.[4] The house may have been unfinished when Willard died in 1861. His brother Lafayette, having served as a surgeon in the Mexican–American War, the Mariposa War, and the Civil War, and been involved in the first Euro-American exploration of the Yosemite Valley, took up residence in the house in 1865 and lived there until his own death in 1903.[3]