Residents of the upper Mississippi and St. Croix valleys gathered in the frontier community of Stillwater to press the federal government for the creation of Minnesota Territory. The Stillwater Convention did not itself establish Minnesota, but it transformed local demands for organized government into a formal political program. Its memorial to Congress, its selection of Henry Hastings Sibley as a representative of the region’s interests, and its adoption of the name Minnesota placed Stillwater at a critical point in the political formation of the future state.
The convention grew from an unusual jurisdictional problem created by western statehood. Iowa entered the Union in 1846, while Wisconsin became a state on May 29, 1848. Wisconsin’s new state boundary followed the St. Croix River in the north, excluding the lands west of that river that had previously formed part of Wisconsin Territory. Residents around Stillwater, St. Paul, St. Anthony, Mendota, and other settlements faced uncertainty concerning the continuation and authority of territorial government. Historians have noted that the precise legal status of the remaining Wisconsin Territory was disputed. The Stillwater delegates, however, explicitly argued that they lacked adequate government, public officers, and legal protection.
Local leaders first met in early August 1848 to consider territorial organization. A call was then issued for a broader convention at Stillwater on August 26. The meeting began at 10:00 a.m. on the upper floor of John McKusick’s store at Main and Myrtle streets. The convention records identify sixty-one signatures on the memorial ultimately adopted. Historian William E. Lass has cautioned that the signatures do not conclusively establish that all sixty-one men were physically present throughout the convention, although Minnesota tradition has long described them as the convention’s sixty-one delegates.
The participants represented several settlements and occupations. Among the leading figures were Joseph Renshaw Brown, Henry Hastings Sibley, Franklin Steele, Morton S. Wilkinson, Henry L. Moss, and David Lambert. Brown, an experienced trader, politician, and promoter who had been active in the St. Croix Valley for years, headed a seven-member committee assigned to prepare a memorial requesting the prompt organization of a new territory.
The committee presented its memorial approximately four and one-half hours later. Its language described residents as having been left without officers capable of administering laws and without adequate legal protection for life and property. The memorial emphasized that residents desired lawful government and blamed congressional inaction partly on inadequate knowledge in Washington of the region’s population, resources, and political circumstances. The convention unanimously approved the document.
The delegates also selected Henry Hastings Sibley of Mendota to travel to Washington and advocate for territorial organization. Sibley was already one of the upper Mississippi Valley’s most prominent businessmen and political figures. His position gained stronger constitutional standing later that year. After John Hubbard Tweedy resigned as Wisconsin Territory’s congressional delegate, John Catlin, who maintained that the residual Wisconsin Territory remained legally in existence, called a special election. On October 30, 1848, Sibley defeated Henry Mower Rice and subsequently traveled to Washington. After debate over his right to represent the remaining territory, the House of Representatives seated him.
Sibley then became a central congressional advocate for Minnesota territorial organization. Senator Stephen A. Douglas of Illinois, chairman of the Senate Committee on Territories and a longtime supporter of organizing the upper Mississippi country, played an important legislative role. Congress finally approved the Organic Act establishing Minnesota Territory on March 3, 1849. The new territory extended from the St. Croix River west to the Missouri and White Earth rivers and included much of present-day Minnesota along with parts of the future Dakotas. The act created a territorial government consisting of a governor, secretary, judiciary, legislature, and congressional delegate.
Stillwater therefore occupies an important place in Minnesota’s institutional history. The August 26 convention provided an organized local response to the political uncertainty following Wisconsin statehood. It produced a formal memorial, established a territorial name, designated an advocate, and helped create the political momentum that culminated in congressional action six months later. Minnesota Territory subsequently developed its own legislature, courts, counties, and executive government before Minnesota entered the Union as the thirty-second state on May 11, 1858.
Stillwater’s designation as the “Birthplace of Minnesota” reflects this specific political legacy. Minnesota did not legally begin in Stillwater; Congress created the territory in Washington. Yet the convention held above McKusick’s store on August 26, 1848, became one of the decisive organized movements that carried the demand for Minnesota government from the settlements of the upper Mississippi Valley to the United States Congress.
References / More Knowledge:
Lass, William E. “The Birth of Minnesota.” Minnesota History, Minnesota Historical Society.
https://storage.googleapis.com/mnhs-org-support/mn_history_articles/55/v55i06p267-279.pdf
Library of Congress. “United States Statutes at Large, Volumes 9–13 (1845–1865).” Organic Act establishing the Territorial Government of Minnesota, March 3, 1849.
https://www.loc.gov/collections/united-states-statutes-at-large/articles-and-essays/vol9-13/
Minnesota Legislative Reference Library. North Star State: A Minnesota History.
https://www.leg.mn.gov/docs/2013/other/130552.pdf
Minnesota Secretary of State. “Founding Documents: Organic Act of 1849.” Minnesota Legislative Manual.
https://www.sos.mn.gov/media/5426/founding-documents-2023.pdf
Van Koughnet, Donald E. “Creation of the Territory.” Minnesota History, Minnesota Historical Society.
https://storage.googleapis.com/mnhs-org-support/mn_history_articles/14/v14i02p127-171.pdf
Washington County Historical Society. “Making Minnesota: 1848 Stillwater Convention Meeting Minutes.”
https://www.wchsmn.org/historical-messenger/making-minnesota/
Washington County Historical Society. “Stillwater.”
https://www.wchsmn.org/stillwater/
Washington County Historical Society. “Washington County Timeline.”
https://www.wchsmn.org/timeline/