This is said by Mr. Beatty on the Testimony of Four different Persons,
Benjamin Sutton, Levi Hicks, Jack (who was himself a Delaware Indian)
and Joseph the Interpreter, who each of them had lived a long time in
the Country, and were acquainted with the Traditions that prevailed
among the Inhabitants. These Persons declared that they know Tribes
of Indians who used the ancient British Tongue.

There is not the least reason to call their Veracity in question, or
even to charge Them with Credulity, for they could have no Interest
in propagating such a report among Persons who were not Welsh, if
it were not true. Captain Stewart seems to have visited parts of
the Country to the West, and South West, far beyond the Extent of
Mt. Beatty's Tour.

From these accounts, accurately compared together, it would seem
that the Welsh Tribes are now divided into three Tribes, separate
from one another. The Tuscoraras, on the South side of Lake Erie,
between the Ohio and Mississipi Rivers, behind Pensylvania. The
Delawares, whom I take to be the same with the Doegs, lower down
on the Ohio, and Delaware Rivers; and the other Tribe to the West
of the Mississipi, from whose Country, we are told the Rivers flow
to the South Sea or Pacific Ocean. The Account which the above
named Persons gave to Mr. Beatty is the more credible, as it is
not at all probable, I may say, possible, that either of these
had ever heard of Llwyd and Powel's History; and very little if
any thing of Mr. Jones's Narrative. Of Mr. Jones, however, there
seems to have been some Tradition in the Country, perhaps, among
the Indians; for he must have been the Clergyman alluded to by
Mr. Beatty.