I have personally used an index of the 1855 state census for the city of Buffalo. It was put together to support work on an advanced degree. It is located in the University at Buffalo Archives. I found this listed in a pamphlet called " Searching Family History at The Buffalo & Erie County Public Library" at the top of page 15. I got the pamphlet at the Special Collections Department at the downtown library. To quote the pamphlet " The University Archives at the state University of New York at Buffalo (SUNYAB) owns a personal name index to the 1855 State Census for Buffalo" Rick Fraas