An excellent bibliography of the state censuses of New York, New York State Censuses & Substitutes by William "Bill" Dollarhide provides guidance for locating and researching the census schedules and census substitutes available for New York State and its 62 counties. If that's not enough, it also includes NY State county boundary maps and census extraction forms. If you're researching New York ancestors, "New York State Censuses & Substitutes" is a 'must-have' book!