All the Maps showing the Manskins from 1670 to 1750s
show them there because the Indian Massacre was a huge event
in National History even though the were removed
shortly after 1645 from both the Wormely location and
“The Island”. Many of the later maps are obvious
derivatives of earlier maps, so that further
propagated the Manskin Tribe name for a longer
period.
The bottom line is that attempting to eradicate the
entire American population put them on the map for
100 years after their demise even though they had
been wiped out and left the Island in the late
1660s.