Most of the more caucasoid natives that survived the imported diseases have long long ago shed their moccasins and put on hard hats and taken up briefcases and become standard Americans(or colonials in the 1700s) with no reference to their ancestry. Many of the East Coast natives were described in the 15-1600s as light skinned and large eyed and as not looking out of place in Paris or London.
Which Indian tribes were said to look like Europeans? I'm working on a history of events that took place at Jamestown, and reading right now about the Powhatan Indians, and I have yet to come across such a statement.
Have you ever seen drawings of Pocahontas? Even dressed up like a British lady, she didn't look white in the least.