The nations after 1722 that were extensively studied by William N. Fenton were Mohawk, Onondaga, Oneida, Cayuga, Seneca, and Tuscarora.
William N. Fenton (December 15, 1908  June 17, 2005) was an American scholar and writer known for his extensive studies of Iroquois history and culture. 
 They were known during the colonial years to the French as the "Iroquois League," and later as the "Iroquois Confederacy," and to the English as the "Five Nations" (before 1722), and later as the "Six Nations," comprising the Mohawk, Onondaga, Oneida, Cayuga, Seneca, and Tuscarora peoples. 
