Athabaskans

As for the Athabaskans, they were one of the later peoples to come to North America and probably by boat, island-hopping along the Pacific coast following the Ice Age, around 8000 BCE or so.

Mommy, where do tones come from? 2007

I actually found one once claiming that the Athabaskans refugee Mongols defeated by Genghis Khan.

languagehat.com: PHEEVR AND NUNLEY. 2005

Athabaskans, and Caribou-Eaters, until, at the age of twenty-seven he was chosen as the coadjutor and future successor of Mgr. Provencher.

The Catholic Encyclopedia, Volume 14: Simony-Tournon 1840-1916 1913

Columbia river, the Athabaskans of Hudson's Bay, the Fuegians and some other South American tribes, are in the upper status of savagery.

The Discovery of America Vol. 1 (of 2) with some account of Ancient America and the Spanish Conquest John Fiske 1871

Athabaskans, on the northeast by Eskimos, and on the east by the ocean.

The Discovery of America Vol. 1 (of 2) with some account of Ancient America and the Spanish Conquest John Fiske 1871

The Athabaskans of Hudson's Bay were on about the same level of savagery.

The Discovery of America Vol. 1 (of 2) with some account of Ancient America and the Spanish Conquest John Fiske 1871

But, as Victor said, "You never forget your own language," and nowadays they had a great interest in "getting back their own culture," which can be traced to the Athabaskans in North Western Canada who came across the Bering land bridge thousands of years ago.

Ohmynews International 2010

Southern Athabaskans, includes (p. 308) Kwalioqwa, Tlatskanai, Umkwa.) = Athabaskan, Latham in Trans.

Seventh Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1885-1886, Government Printing Office, Washington, 1891 John Wesley Powell 1868