Including this First Nations tribe located in Maine, how many are linked in a confederation?
Penobscot The Penobscot ("Panawahpskek") are an indigenous people in North America with members who reside in the United States and Canada. They are organized as a federally recognized tribe in Maine and as a First Nations band government in the Atlantic provinces.
Tonawanda Band of Seneca The Tonawanda Band of Seneca Indians is a federally recognized tribe in the State of New York. They have maintained the traditional form of government led by hereditary Seneca chiefs ("sachems") selected by clan mothers. The Seneca are one of the original Five Nations (later six) of the "Haudenosaunee" or Iroquois Confederacy. Their people speak the Seneca language, an Iroquoian language.