Marais des Cygnes Massacre - About
Kansas from 1854 - 1861 was the scene of a bitter struggle to determine whether the territory should enter the Union as a free or a slave state. The principle of popular sovereignty embodied in the Kansas-Nebraska Act of 1854, which created the territory, provided that this decision should be made by a vote of the people. Consequently, free-state and proslavery adherents became rivals for majority control, and strife and bad feelings resulted. more
In 1941 the Kansas legislature authorized acceptance of the massacre site, including the Hadsall house, as a gift to the state from the Pleasanton Post, Veterans of Foreign Wars. In 1961 the state provided funds for the restoration of the house, and in 1963 the entire property was turned over to the Kansas Historical Society for administration as a state historic site. The massacre site was listed in the National Register of Historic Places in 1971. The site became a National Historic Landmark in 1974.