The Iroquois Census Project contains yearly annuity census rolls for the Iroquois Nations residing in New York State, starting in 1851 through 1886, with rolls also for 1890 and 1902.
Buffalo Creek Census 1840 transcription; 1915 Cattaraugus and Allegany territories transcription; 1915 Tonawanda territory transcription; 1845 NY State census of Buffalo Creek territory; appraisal report, Seneca territories, 1843-1844.