Mary Lou Keysor died Tuesday, August 12, 2008 at Rapid City Regional Hospital. Survivors include a son, Wesley Keyson, Tucson, AZ, a sister, Billie Cornell, Spearfish and a niece, Jackie Corness, Rapid City, Graveside services will be Monday, August 18, 2008, at Mountain View Cemetery in Rapid City with Rev. Bruce Baum officiating.