I dont know where or when this particular article was published but
the los angeles paper mentioned was
Los Angeles Examiner of June 15, 1919
Mystery of the desert, J.A. Guthrie's interview with W.W.Mccoy
reprinted Nov. 1953 by Harold O. Weight in the calico print. in the same issue of the Calico print Weight said that "Dane and Mary Coolidge, in their book The Last of the Seris, make the definite statement that blue-eyed, yellow haired Vikings did come to Tiburon Island in the Gulf long ago, and that members of the expedition became the founders of the blue-eyed fair-complexioned Mayo Indians on the Mayo River, Sonora"
on the Arizona viking mining stories etc. if you find out more let me know
when Ehrenburg first arrived the local colorado river Indians knew some German words
But that could be because of either the long time presence of dutch pirates in the nearby gulf or because some early Spanish Missionaries like Father Kino were born and educated in countries other than Spain.
if there were viking like people with longboats, they could well be The Rus a viking like people who later became known as Russians.
"Arizona Highways" magazine in 1948 had an article about pearls, China dishes and gold coins taken by a papgo Indian from a half buried (dutch?, British?, Spanish? ferryboat?) ship in the sandhills of Pinacate