Your search The Yankton Sioux Tribe of Indians, Appellee, v. Kenneth Nelson, Daniel Svotas, De Wit Harold, State of Southdakota, Appellant.charles Mix County, South Dakota.the Yankton Sioux Tribe of Indians, Appellee, v. Kenneth Nelson, Daniel Svotas, De Wit Harold, State of Southdakota, Charles Mix County, South Dakota, Appellant did not match any document.