Eighteenth Annual Report of the Bureau of American Ethnology to the Secretary of the Smithsonian Institution, 1896 – 1897, House Document No. 736, United States Serial Set 4015, 56th Congress, 1st Session
The Spanish Government fully recognized the rights of the Indians to their landed possessions and ordered that they shall not in any manner be disturbed but on the contrary shall be protected and supported (pages 539-542).
Look at the links below for more documentation on the history of the Kawaiisu Tribe.