If you ask the Mormons, they will tell you those people were "Nephites" and "Lamanites", who Mormons say were Hebrews, as well as the American Indians were Hebrews.
I think there is probably a clue in here:
Guanches-Canary Islands-DNA Project
"Indeed, the Guanches are deemed to be related to the Berbers of neighboring Morocco, who are, likewise, tall, blond and blue-eyed when unmixed with the Arab majority. Other specialists, however, believe that the Guanches are related to the Celts of Western Europe, the early realm of these races. No matter what, the Guanches represent a unique opportunity of studying the early peoples of this region."
My y-chromosome DNA is R1b.
“If you ask the Mormons, they will tell you those people were “Nephites” and “Lamanites”, who Mormons say were Hebrews, as well as the American Indians were Hebrews.”
Why on earth would you ask them?
You might as well ask Scientologists.