Thousands of Indians were enslaved in Colonial New England, according to Margaret Ellen Newell. Alan Gallay writes that between 1670 and 1715, more Indians were exported into slavery through Charles Town (now Charleston, South Carolina) than Africans were imported. Brett Rushforth recently attempted a tally of the total numbers of enslaved, and he told me that he thinks 2 million to 4 million indigenous people in the Americas, North and South, may have been enslaved over the centuries that the practice prevailed.
They were very heavily enslaved.