The Archives holds the original schedules of the State population census for 1915 and 1925 (series A0275, A0276). The schedules are not indexed, and Archives staff will not search them except to provide legal proof of age. The schedules are fragile, and therefore use is restricted. The 1915 and 1925 census schedules and key maps for large cities are available on microform at the State Library and online to New York State residents through Ancestry.com New York. Manuscript schedules of the State census for 1801-1905 were destroyed by fire in 1911. Some county clerks' offices hold duplicate copies of some of the State censuses taken periodically between 1825 and 1925. For further information on these census records, see New York State Census Records, 1790-1925 (N.Y. State Library Bibliography Bulletin 88, 1981).