Manhattoe/Manhattoes is a term describing a place and, mistakenly, a people. The location was the very southern tip of the Manhattan island during the time of the Dutch colonization of the Americas at what became New Amsterdam there. The people were a band of the Wappinger known as the Weckquaesgeek, native to an area further north in what is now Westchester County, who controlled the upper three-quarters of the island as a hunting ground.
https://en.wikipedia.org/wiki/Manhattoe