Soon after the event, Dewey Beard, his brother Joseph Horn Cloud, and others formed the Wounded Knee Survivors Association, which came to include descendants. They sought compensation from the U.S. government for the many fatalities and injured. Today the association is independent and works to preserve and protect the historic site from exploitation, and to administer any memorial erected there. Papers of the association (1890–1973) and related materials are held by the University of South Dakota and are available for research. It was not until the 1990s that a memorial to the Lakota was included in the National Historic Landmark.