Here are two interesting online sources at Google books, for tracking your New York County ancestors. Just type the surname into the box before the word "Go." The first one privides street addresses and and names of residents of the buidling. # 1 Annual report of the Committee on Fire Patrol, to the New York Board of Fire By New York Board of Fire Underwriters. http://books.google.com/books?id=jP0dAAAAMAAJ&pg=PT135&dq=Snellback&lr=& ie=ISO-8859-1&output=html This second one tracks those who may have worked the polls. # 2 Document, Part 1, Issues 1-5 By New York (N.Y.). Board of Aldermen This third one tracks Civil War veterans. # 3 Annual report of the Adjutant-General of the State of New York for, Issue 34 By New York (State). Adjutant General's Office #4 Who's who in New York City and State, Volume 4 ---1909 By Lewis Randolph Hamersly, John William Leonard, Frank R. Holmes