Census of the New York Indians taken in 1896. The following census extractions provide the details from the 1896 census for the Cayuga, Oneida, Onondaga, St. Regis and Tonawanda Band of Seneca Indians. As the progression of white settlers moved west into the territories of the New York Indians, the tribes were decimated by disease and war, and “forced” into treaties that eventually restricted their settlements onto five Reservations set aside in the state of New York, Oklahoma, or for those siding with the British, in Ontario Canada. While at one time independent, these tribes (Cayuga, Oneida, Onondaga, St. Regis and Tonawanda) over time came together and were known as the Seneca Indians.