From the record
“The William Warren Two Rivers House Site and Peter McDougall Farmstead is a historic farmstead near Royalton, Minnesota. The site was built in 1847, and was where William Whipple Warren wrote his recounting of the history of the Ojibwe people, titled History of the Ojibways based upon Traditions and Oral Statements.”
Wikipedia article William Warren Two Rivers House Site and Peter McDougall Farmstead, CC BY-SA 4.0.
One of 15 National Register listings published here for Morrison County · listed in 1974 · category: Building · built in 1847, vernacular architecture.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service