Fascinating facts! Do you have a link or title for the source? I’d like to learn more.
The Turkish government has invested some serious bucks into discovering their early involvement in the East Coast. Just search the net for Jamestown Croatoan Smith Balkan Turk, etc. You'll find plenty of stuff.
Two items are rather fascinating ~ you'll run into them eventually ~ Cherokee has been found to have Uralic-Altaic elements in it ~ either from all the way back to the Ice Age and the arrival of the Sa'ami in North America, or more recently with the arrival of a good number of Turkish speaking people. Several researchers into the people called "Melungeon" argue that their "term" is, in fact, Turkish for "the accursed of Earth" ~ you can find references to all sorts of things by looking for "Melungeon".
Some genetic tests a few years back demonstrated that the "Melungeon" people actually have some genes found only in a Negro group present in Karachi, Pakistan ~ they were brought to that area in trade in the 1300s or thereabouts. Pakistan at that time was part of a Moslem Empire extending from Spain to Indonesia, so it's possible some of those guys got to America as Spanish POWs.