五大湖地域
Free Soil, Free Labor, Free Men: The Ideology of the Republican Party Before the Civil War, Oxford University Press
Reese, T (2001). Soft Gold: A History of the Fur Trade in the Great Lakes Region and Its Impact on Native American Culture, Heritage Press.
Shannon, Fred (1945). The Farmer's Last Frontier: Agriculture, 1860–1897, Farrar & Rineheart.
Taylor, Alan (2007), The Divided Ground: Indians, Settlers and the Northern Borderland of the American Revolution, Vintage Books.