perhaps they are the ancestors of the Amerindians if there is any truth to the Salutrean hypothesis
Anyway, it appears that the Cllovis people were in the east coast at least 12,000 years ago, and their arrow heads and other technology resembled the technology of the people who lived at the same time in Iberia. There is evidence that the original people of Iberia and the British Isles are from a common culture as well, so the original Clovis people may have been Welsh! More accurately, there was probably a common culture in western Europe during the end of the last ice age, and it was that culture from which the Clovis people came.